45257520520 has 16 divisors (see below), whose sum is σ = 101829421260. Its totient is φ = 18103008192.

The previous prime is 45257520491. The next prime is 45257520541. The reversal of 45257520520 is 2502575254.

It can be written as a sum of positive squares in 2 ways, for example, as 45172401444 + 85119076 = 212538^2 + 9226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45257520520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565718967 + ... + 565719046.

Almost surely, 2^45257520520 is an apocalyptic number.

45257520520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45257520520 is an abundant number, since it is smaller than the sum of its proper divisors (56571900740).

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

45257520520 is a wasteful number, since it uses less digits than its factorization.

45257520520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131438024 (or 1131438020 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 37.

The spelling of 45257520520 in words is "forty-five billion, two hundred fifty-seven million, five hundred twenty thousand, five hundred twenty".