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25630126 = 2196111057
BaseRepresentation
bin110000111000…
…1010110101110
31210020010220221
41201301112232
523030131001
62313201554
7430565254
oct141612656
953203827
1025630126
1113516325
1287002ba
135404c72
1435925d4
1523b41a1
hex18715ae

25630126 has 16 divisors (see below), whose sum is σ = 41135760. Its totient is φ = 11940480.

The previous prime is 25630117. The next prime is 25630127. The reversal of 25630126 is 62103652.

It is a self number, because there is not a number n which added to its sum of digits gives 25630126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25630127) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3211 + ... + 7846.

It is an arithmetic number, because the mean of its divisors is an integer number (2570985).

Almost surely, 225630126 is an apocalyptic number.

25630126 is a deficient number, since it is larger than the sum of its proper divisors (15505634).

25630126 is a wasteful number, since it uses less digits than its factorization.

25630126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11139.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 25630126 is about 5062.6204677025. The cubic root of 25630126 is about 294.8380840847.

Adding to 25630126 its reverse (62103652), we get a palindrome (87733778).

The spelling of 25630126 in words is "twenty-five million, six hundred thirty thousand, one hundred twenty-six".

Divisors: 1 2 19 38 61 122 1159 2318 11057 22114 210083 420166 674477 1348954 12815063 25630126