45257547031 has 4 divisors (see below), whose sum is σ = 45315054232. Its totient is φ = 45200039832.

The previous prime is 45257547017. The next prime is 45257547103. The reversal of 45257547031 is 13074575254.

It is a happy number.

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 45257547031 - 2⁷ = 45257546903 is a prime.

It is a super-2 number, since 2×45257547031² (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 (45257547011) 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 3 ways as a sum of consecutive naturals, for example, 28752420 + ... + 28753993.

It is an arithmetic number, because the mean of its divisors is an integer number (11328763558).

Almost surely, 2^45257547031 is an apocalyptic number.

45257547031 is a deficient number, since it is larger than the sum of its proper divisors (57507201).

45257547031 is an equidigital number, since it uses as much as digits as its factorization.

45257547031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57507200.

The product of its (nonzero) digits is 588000, while the sum is 43.

The spelling of 45257547031 in words is "forty-five billion, two hundred fifty-seven million, five hundred forty-seven thousand, thirty-one".