25047977523 has 16 divisors (see below), whose sum is σ = 34911979776. Its totient is φ = 15943922720.

The previous prime is 25047977519. The next prime is 25047977567. The reversal of 25047977523 is 32577974052.

It is a cyclic number.

It is not a de Polignac number, because 25047977523 - 2² = 25047977519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25047977593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287433 + ... + 364298.

It is an arithmetic number, because the mean of its divisors is an integer number (2181998736).

Almost surely, 2^25047977523 is an apocalyptic number.

25047977523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25047977523 is a deficient number, since it is larger than the sum of its proper divisors (9864002253).

25047977523 is a wasteful number, since it uses less digits than its factorization.

25047977523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652314.

The product of its (nonzero) digits is 3704400, while the sum is 51.

The spelling of 25047977523 in words is "twenty-five billion, forty-seven million, nine hundred seventy-seven thousand, five hundred twenty-three".