525390775028 has 12 divisors (see below), whose sum is σ = 1050781550112. Its totient is φ = 225167475000.

The previous prime is 525390775009. The next prime is 525390775043. The reversal of 525390775028 is 820577093525.

525390775028 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9381978098 + ... + 9381978153.

It is an arithmetic number, because the mean of its divisors is an integer number (87565129176).

Almost surely, 2^525390775028 is an apocalyptic number.

It is an amenable number.

525390775028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

525390775028 is a wasteful number, since it uses less digits than its factorization.

525390775028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18763956262 (or 18763956260 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 53.

The spelling of 525390775028 in words is "five hundred twenty-five billion, three hundred ninety million, seven hundred seventy-five thousand, twenty-eight".