25123234356556 has 48 divisors (see below), whose sum is σ = 50411811744000. Its totient is φ = 10731695093568.

The previous prime is 25123234356533. The next prime is 25123234356587. The reversal of 25123234356556 is 65565343232152.

It is a super-2 number, since 2×25123234356556² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23365870 + ... + 24417418.

It is an arithmetic number, because the mean of its divisors is an integer number (1050246078000).

Almost surely, 2^{25123234356556} is an apocalyptic number.

It is an amenable number.

25123234356556 is an abundant number, since it is smaller than the sum of its proper divisors (25288577387444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25123234356556 is a wasteful number, since it uses less digits than its factorization.

25123234356556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054366 (or 1054364 counting only the distinct ones).

The product of its digits is 19440000, while the sum is 52.

The spelling of 25123234356556 in words is "twenty-five trillion, one hundred twenty-three billion, two hundred thirty-four million, three hundred fifty-six thousand, five hundred fifty-six".