45515657 has 16 divisors (see below), whose sum is σ = 51707904. Its totient is φ = 39690000.

The previous prime is 45515651. The next prime is 45515669. The reversal of 45515657 is 75651554.

It is a cyclic number.

It is not a de Polignac number, because 45515657 - 2⁴ = 45515641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45515657.

It is not an unprimeable number, because it can be changed into a prime (45515651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42782 + ... + 43832.

It is an arithmetic number, because the mean of its divisors is an integer number (3231744).

Almost surely, 2^45515657 is an apocalyptic number.

It is an amenable number.

45515657 is a deficient number, since it is larger than the sum of its proper divisors (6192247).

45515657 is a wasteful number, since it uses less digits than its factorization.

45515657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220.

The product of its digits is 105000, while the sum is 38.

The square root of 45515657 is about 6746.5292558470. The cubic root of 45515657 is about 357.0427936890.

The spelling of 45515657 in words is "forty-five million, five hundred fifteen thousand, six hundred fifty-seven".