75525252556 has 48 divisors (see below), whose sum is σ = 143678424064. Its totient is φ = 34529918976.

The previous prime is 75525252553. The next prime is 75525252563. The reversal of 75525252556 is 65525252557.

It is not an unprimeable number, because it can be changed into a prime (75525252553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4435996 + ... + 4452988.

Almost surely, 2^75525252556 is an apocalyptic number.

It is an amenable number.

75525252556 is a deficient number, since it is larger than the sum of its proper divisors (68153171508).

75525252556 is a wasteful number, since it uses less digits than its factorization.

75525252556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17810 (or 17808 counting only the distinct ones).

The product of its digits is 5250000, while the sum is 49.

Subtracting from 75525252556 its reverse (65525252557), we obtain a palindrome (9999999999).

The spelling of 75525252556 in words is "seventy-five billion, five hundred twenty-five million, two hundred fifty-two thousand, five hundred fifty-six".