25245513036620 has 96 divisors (see below), whose sum is σ = 54934960582656. Its totient is φ = 9739084320000.

The previous prime is 25245513036581. The next prime is 25245513036643. The reversal of 25245513036620 is 2663031554252.

It is a super-2 number, since 2×25245513036620² (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 31 ways as a sum of consecutive naturals, for example, 31481645 + ... + 32273595.

It is an arithmetic number, because the mean of its divisors is an integer number (572239172736).

Almost surely, 2^{25245513036620} is an apocalyptic number.

25245513036620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25245513036620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27467480291328).

25245513036620 is an abundant number, since it is smaller than the sum of its proper divisors (29689447546036).

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

25245513036620 is a wasteful number, since it uses less digits than its factorization.

25245513036620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792471 (or 792469 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 25245513036620 in words is "twenty-five trillion, two hundred forty-five billion, five hundred thirteen million, thirty-six thousand, six hundred twenty".