45287253220 has 36 divisors (see below), whose sum is σ = 104534962812. Its totient is φ = 16468091200.

The previous prime is 45287253211. The next prime is 45287253287. The reversal of 45287253220 is 2235278254.

It can be written as a sum of positive squares in 2 ways, for example, as 32934264484 + 12352988736 = 181478^2 + 111144^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9354451 + ... + 9359290.

It is an arithmetic number, because the mean of its divisors is an integer number (2903748967).

Almost surely, 2^45287253220 is an apocalyptic number.

It is an amenable number.

45287253220 is an abundant number, since it is smaller than the sum of its proper divisors (59247709592).

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

45287253220 is a wasteful number, since it uses less digits than its factorization.

45287253220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18713772 (or 18713759 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 45287253220 in words is "forty-five billion, two hundred eighty-seven million, two hundred fifty-three thousand, two hundred twenty".