45031287057 has 4 divisors (see below), whose sum is σ = 60041716080. Its totient is φ = 30020858036.

The previous prime is 45031287043. The next prime is 45031287071. The reversal of 45031287057 is 75078213054.

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 an interprime number because it is at equal distance from previous prime (45031287043) and next prime (45031287071).

It is a cyclic number.

It is not a de Polignac number, because 45031287057 - 2⁸ = 45031286801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45031287557) 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, 7505214507 + ... + 7505214512.

It is an arithmetic number, because the mean of its divisors is an integer number (15010429020).

Almost surely, 2^45031287057 is an apocalyptic number.

It is an amenable number.

45031287057 is a deficient number, since it is larger than the sum of its proper divisors (15010429023).

45031287057 is a wasteful number, since it uses less digits than its factorization.

45031287057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15010429022.

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 45031287057 in words is "forty-five billion, thirty-one million, two hundred eighty-seven thousand, fifty-seven".