45516250521 has 72 divisors (see below), whose sum is σ = 78321769344. Its totient is φ = 24946548480.

The previous prime is 45516250511. The next prime is 45516250543. The reversal of 45516250521 is 12505261554.

45516250521 is a `hidden beast` number, since 4 + 5 + 5 + 1 + 625 + 0 + 5 + 21 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-45516250521 is a prime.

It is a super-2 number, since 2×45516250521² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45516250511) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6119821 + ... + 6127253.

It is an arithmetic number, because the mean of its divisors is an integer number (1087802352).

Almost surely, 2^45516250521 is an apocalyptic number.

It is an amenable number.

45516250521 is a deficient number, since it is larger than the sum of its proper divisors (32805518823).

45516250521 is a wasteful number, since it uses less digits than its factorization.

45516250521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7591 (or 7551 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 45516250521 in words is "forty-five billion, five hundred sixteen million, two hundred fifty thousand, five hundred twenty-one".