25623919959 has 32 divisors (see below), whose sum is σ = 37545984000. Its totient is φ = 15415490400.

The previous prime is 25623919927. The next prime is 25623919999. The reversal of 25623919959 is 95991932652.

It is not a de Polignac number, because 25623919959 - 2⁵ = 25623919927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25623919999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3141124 + ... + 3149270.

It is an arithmetic number, because the mean of its divisors is an integer number (1173312000).

Almost surely, 2^25623919959 is an apocalyptic number.

25623919959 is a deficient number, since it is larger than the sum of its proper divisors (11922064041).

25623919959 is a wasteful number, since it uses less digits than its factorization.

25623919959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8851.

The product of its digits is 11809800, while the sum is 60.

The spelling of 25623919959 in words is "twenty-five billion, six hundred twenty-three million, nine hundred nineteen thousand, nine hundred fifty-nine".