25021742538572 has 12 divisors (see below), whose sum is σ = 47156360938176. Its totient is φ = 11548496556240.

The previous prime is 25021742538563. The next prime is 25021742538577. The reversal of 25021742538572 is 27583524712052.

It is not an unprimeable number, because it can be changed into a prime (25021742538577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240593678204 + ... + 240593678307.

It is an arithmetic number, because the mean of its divisors is an integer number (3929696744848).

Almost surely, 2^{25021742538572} is an apocalyptic number.

It is an amenable number.

25021742538572 is a deficient number, since it is larger than the sum of its proper divisors (22134618399604).

25021742538572 is a wasteful number, since it uses less digits than its factorization.

25021742538572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481187356528 (or 481187356526 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 53.

The spelling of 25021742538572 in words is "twenty-five trillion, twenty-one billion, seven hundred forty-two million, five hundred thirty-eight thousand, five hundred seventy-two".