45551133531 has 36 divisors (see below), whose sum is σ = 70878819024. Its totient is φ = 28178438400.

The previous prime is 45551133517. The next prime is 45551133553. The reversal of 45551133531 is 13533115554.

45551133531 is a `hidden beast` number, since 4 + 5 + 5 + 5 + 113 + 3 + 531 = 666.

It is not a de Polignac number, because 45551133531 - 2¹³ = 45551125339 is a prime.

It is a super-2 number, since 2×45551133531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45551133931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61341 + ... + 308001.

It is an arithmetic number, because the mean of its divisors is an integer number (1968856084).

Almost surely, 2^45551133531 is an apocalyptic number.

45551133531 is a deficient number, since it is larger than the sum of its proper divisors (25327685493).

45551133531 is a wasteful number, since it uses less digits than its factorization.

45551133531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246772 (or 246752 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The spelling of 45551133531 in words is "forty-five billion, five hundred fifty-one million, one hundred thirty-three thousand, five hundred thirty-one".