25758325530 has 48 divisors (see below), whose sum is σ = 76539026304. Its totient is φ = 5887617120.

The previous prime is 25758325511. The next prime is 25758325543. The reversal of 25758325530 is 3552385752.

It is a happy number.

25758325530 is a `hidden beast` number, since 2 + 575 + 8 + 3 + 25 + 53 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 20442486 + ... + 20443745.

It is an arithmetic number, because the mean of its divisors is an integer number (1594563048).

Almost surely, 2^25758325530 is an apocalyptic number.

25758325530 is an abundant number, since it is smaller than the sum of its proper divisors (50780700774).

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

25758325530 is a wasteful number, since it uses less digits than its factorization.

25758325530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40886251 (or 40886248 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 25758325530 in words is "twenty-five billion, seven hundred fifty-eight million, three hundred twenty-five thousand, five hundred thirty".