45515555231 has 4 divisors (see below), whose sum is σ = 45618299592. Its totient is φ = 45412810872.

The previous prime is 45515555221. The next prime is 45515555263. The reversal of 45515555231 is 13255551554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45515555231 - 2¹⁴ = 45515538847 is a prime.

It is a super-2 number, since 2×45515555231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45515555221) by changing a digit.

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, 51371516 + ... + 51372401.

It is an arithmetic number, because the mean of its divisors is an integer number (11404574898).

Almost surely, 2^45515555231 is an apocalyptic number.

45515555231 is a deficient number, since it is larger than the sum of its proper divisors (102744361).

45515555231 is a wasteful number, since it uses less digits than its factorization.

45515555231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102744360.

The product of its digits is 375000, while the sum is 41.

The spelling of 45515555231 in words is "forty-five billion, five hundred fifteen million, five hundred fifty-five thousand, two hundred thirty-one".