25352243455440 has 160 divisors (see below), whose sum is σ = 86585556776832. Its totient is φ = 6085146880000.

The previous prime is 25352243455433. The next prime is 25352243455453. The reversal of 25352243455440 is 4455434225352.

It is a super-2 number, since 2×25352243455440² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 25352243455440.

It is a congruent number.

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, 47273571 + ... + 47806850.

Almost surely, 2^{25352243455440} is an apocalyptic number.

25352243455440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25352243455440 is an abundant number, since it is smaller than the sum of its proper divisors (61233313321392).

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

25352243455440 is a wasteful number, since it uses less digits than its factorization.

25352243455440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95080549 (or 95080543 counting only the distinct ones).

The product of its (nonzero) digits is 11520000, while the sum is 48.

The spelling of 25352243455440 in words is "twenty-five trillion, three hundred fifty-two billion, two hundred forty-three million, four hundred fifty-five thousand, four hundred forty".