25440155041320 has 96 divisors (see below), whose sum is σ = 82681436466720. Its totient is φ = 6783964824960.

The previous prime is 25440155041309. The next prime is 25440155041331. The reversal of 25440155041320 is 2314055104452.

25440155041320 is a `hidden beast` number, since 2 + 5 + 4 + 4 + 0 + 15 + 504 + 132 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (25440155041309) and next prime (25440155041331).

It is a super-3 number, since 3×25440155041320³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36232227 + ... + 36927693.

It is an arithmetic number, because the mean of its divisors is an integer number (861264963195).

Almost surely, 2^{25440155041320} is an apocalyptic number.

25440155041320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25440155041320 is an abundant number, since it is smaller than the sum of its proper divisors (57241281425400).

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

25440155041320 is a wasteful number, since it uses less digits than its factorization.

25440155041320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797095 (or 797088 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 25440155041320 in words is "twenty-five trillion, four hundred forty billion, one hundred fifty-five million, forty-one thousand, three hundred twenty".