45537892520 has 32 divisors (see below), whose sum is σ = 108487333800. Its totient is φ = 17143676928.

The previous prime is 45537892513. The next prime is 45537892549. The reversal of 45537892520 is 2529873554.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44023593124 + 1514299396 = 209818^2 + 38914^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33483065 + ... + 33484424.

Almost surely, 2^45537892520 is an apocalyptic number.

45537892520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45537892520 is an abundant number, since it is smaller than the sum of its proper divisors (62949441280).

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

45537892520 is a wasteful number, since it uses less digits than its factorization.

45537892520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66967517 (or 66967513 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 45537892520 in words is "forty-five billion, five hundred thirty-seven million, eight hundred ninety-two thousand, five hundred twenty".