25135514244 has 48 divisors (see below), whose sum is σ = 65185915200. Its totient is φ = 8375963328.

The previous prime is 25135514207. The next prime is 25135514273. The reversal of 25135514244 is 44241553152.

25135514244 is a `hidden beast` number, since 2 + 5 + 135 + 514 + 2 + 4 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 25135514199 and 25135514208.

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, 340872 + ... + 408000.

It is an arithmetic number, because the mean of its divisors is an integer number (1358039900).

Almost surely, 2^25135514244 is an apocalyptic number.

It is an amenable number.

25135514244 is an abundant number, since it is smaller than the sum of its proper divisors (40050400956).

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

25135514244 is a wasteful number, since it uses less digits than its factorization.

25135514244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70609 (or 70601 counting only the distinct ones).

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

The spelling of 25135514244 in words is "twenty-five billion, one hundred thirty-five million, five hundred fourteen thousand, two hundred forty-four".