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25050061 = 171473533
BaseRepresentation
bin101111110001…
…1101111001101
31202010200020001
41133203233031
522403100221
62252524301
7422631151
oct137435715
952120201
1025050061
111315a533
128480691
135260c2a
143481061
1522ec391
hex17e3bcd

25050061 has 4 divisors (see below), whose sum is σ = 26523612. Its totient is φ = 23576512.

The previous prime is 25050041. The next prime is 25050071. The reversal of 25050061 is 16005052.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19527561 + 5522500 = 4419^2 + 2350^2 .

It is a cyclic number.

It is not a de Polignac number, because 25050061 - 27 = 25049933 is a prime.

It is a super-2 number, since 2×250500612 = 1255011112207442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25050001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736750 + ... + 736783.

It is an arithmetic number, because the mean of its divisors is an integer number (6630903).

Almost surely, 225050061 is an apocalyptic number.

It is an amenable number.

25050061 is a deficient number, since it is larger than the sum of its proper divisors (1473551).

25050061 is a wasteful number, since it uses less digits than its factorization.

25050061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473550.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 25050061 is about 5005.0035964023. The cubic root of 25050061 is about 292.5968160284.

The spelling of 25050061 in words is "twenty-five million, fifty thousand, sixty-one".

Divisors: 1 17 1473533 25050061