75820569925 has 24 divisors (see below), whose sum is σ = 99739310472. Its totient is φ = 56978688000.

The previous prime is 75820569917. The next prime is 75820569949. The reversal of 75820569925 is 52996502857.

It can be written as a sum of positive squares in 12 ways, for example, as 1240237089 + 74580332836 = 35217^2 + 273094^2 .

It is not a de Polignac number, because 75820569925 - 2³ = 75820569917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75820569925.

It is a congruent number.

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, 50215 + ... + 392635.

It is an arithmetic number, because the mean of its divisors is an integer number (4155804603).

Almost surely, 2^75820569925 is an apocalyptic number.

It is an amenable number.

75820569925 is a deficient number, since it is larger than the sum of its proper divisors (23918740547).

75820569925 is a wasteful number, since it uses less digits than its factorization.

75820569925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342969 (or 342964 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 58.

The spelling of 75820569925 in words is "seventy-five billion, eight hundred twenty million, five hundred sixty-nine thousand, nine hundred twenty-five".