25440335604056 has 32 divisors (see below), whose sum is σ = 50276525331600. Its totient is φ = 12049814125440.

The previous prime is 25440335604049. The next prime is 25440335604059. The reversal of 25440335604056 is 65040653304452.

It is a super-2 number, since 2×25440335604056² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25440335604056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25440335604059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034484110 + ... + 1034508701.

Almost surely, 2^{25440335604056} is an apocalyptic number.

It is an amenable number.

25440335604056 is a deficient number, since it is larger than the sum of its proper divisors (24836189727544).

25440335604056 is a wasteful number, since it uses less digits than its factorization.

25440335604056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068992899 (or 2068992895 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 47.

The spelling of 25440335604056 in words is "twenty-five trillion, four hundred forty billion, three hundred thirty-five million, six hundred four thousand, fifty-six".