45551810531 has 8 divisors (see below), whose sum is σ = 45707707584. Its totient is φ = 45395962920.

The previous prime is 45551810483. The next prime is 45551810561. The reversal of 45551810531 is 13501815554.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45551810531 - 2³⁰ = 44478068707 is a prime.

It is a super-2 number, since 2×45551810531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45551810561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3496676 + ... + 3509678.

It is an arithmetic number, because the mean of its divisors is an integer number (5713463448).

Almost surely, 2^45551810531 is an apocalyptic number.

45551810531 is a deficient number, since it is larger than the sum of its proper divisors (155897053).

45551810531 is a wasteful number, since it uses less digits than its factorization.

45551810531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24721.

The product of its (nonzero) digits is 60000, while the sum is 38.

The spelling of 45551810531 in words is "forty-five billion, five hundred fifty-one million, eight hundred ten thousand, five hundred thirty-one".