75575550825 has 24 divisors (see below), whose sum is σ = 138835087200. Its totient is φ = 40306960080.

The previous prime is 75575550749. The next prime is 75575550857. The reversal of 75575550825 is 52805557557.

75575550825 is a `hidden beast` number, since 7 + 5 + 5 + 7 + 5 + 550 + 82 + 5 = 666.

It is not a de Polignac number, because 75575550825 - 2¹⁸ = 75575288681 is a prime.

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, 55981215 + ... + 55982564.

It is an arithmetic number, because the mean of its divisors is an integer number (5784795300).

Almost surely, 2^75575550825 is an apocalyptic number.

75575550825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75575550825 is a deficient number, since it is larger than the sum of its proper divisors (63259536375).

75575550825 is a wasteful number, since it uses less digits than its factorization.

75575550825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111963798 (or 111963787 counting only the distinct ones).

The product of its (nonzero) digits is 12250000, while the sum is 54.

The spelling of 75575550825 in words is "seventy-five billion, five hundred seventy-five million, five hundred fifty thousand, eight hundred twenty-five".