45872457 has 4 divisors (see below), whose sum is σ = 61163280. Its totient is φ = 30581636.

The previous prime is 45872447. The next prime is 45872471. The reversal of 45872457 is 75427854.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45872457 - 2⁸ = 45872201 is a prime.

It is a super-2 number, since 2×45872457² = 4208564622433698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45872447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7645407 + ... + 7645412.

It is an arithmetic number, because the mean of its divisors is an integer number (15290820).

Almost surely, 2^45872457 is an apocalyptic number.

It is an amenable number.

45872457 is a deficient number, since it is larger than the sum of its proper divisors (15290823).

45872457 is a wasteful number, since it uses less digits than its factorization.

45872457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15290822.

The product of its digits is 313600, while the sum is 42.

The square root of 45872457 is about 6772.9208617848. The cubic root of 45872457 is about 357.9733264564.

The spelling of 45872457 in words is "forty-five million, eight hundred seventy-two thousand, four hundred fifty-seven".