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49042025 = 5217257449
BaseRepresentation
bin1011101100010…
…1001001101001
310102021121000022
42323011021221
5100023321100
64511050225
71133564444
oct273051151
9112247008
1049042025
1125756aaa
1214510975
13a211366
14672865b
15448ae85
hex2ec5269

49042025 has 24 divisors (see below), whose sum is σ = 64783800. Its totient is φ = 36700160.

The previous prime is 49041989. The next prime is 49042033. The reversal of 49042025 is 52024094.

49042025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 16 + 49042009 = 4^2 + 7003^2 .

It is not a de Polignac number, because 49042025 - 222 = 44847721 is a prime.

It is a super-2 number, since 2×490420252 = 4810240432201250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49041985 and 49042003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109001 + ... + 109449.

It is an arithmetic number, because the mean of its divisors is an integer number (2699325).

Almost surely, 249042025 is an apocalyptic number.

It is an amenable number.

49042025 is a deficient number, since it is larger than the sum of its proper divisors (15741775).

49042025 is a wasteful number, since it uses less digits than its factorization.

49042025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 49042025 is about 7003.0011423675. The cubic root of 49042025 is about 366.0351549339.

The spelling of 49042025 in words is "forty-nine million, forty-two thousand, twenty-five".

Divisors: 1 5 17 25 85 257 425 449 1285 2245 4369 6425 7633 11225 21845 38165 109225 115393 190825 576965 1961681 2884825 9808405 49042025