25890012572 has 24 divisors (see below), whose sum is σ = 47981377584. Its totient is φ = 12181324032.

The previous prime is 25890012571. The next prime is 25890012581. The reversal of 25890012572 is 27521009852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25890012571) 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 7 ways as a sum of consecutive naturals, for example, 378983 + ... + 442049.

It is an arithmetic number, because the mean of its divisors is an integer number (1999224066).

Almost surely, 2^25890012572 is an apocalyptic number.

It is an amenable number.

25890012572 is a deficient number, since it is larger than the sum of its proper divisors (22091365012).

25890012572 is a wasteful number, since it uses less digits than its factorization.

25890012572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69125 (or 69123 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 25890012572 in words is "twenty-five billion, eight hundred ninety million, twelve thousand, five hundred seventy-two".