45157055 has 4 divisors (see below), whose sum is σ = 54188472. Its totient is φ = 36125640.

The previous prime is 45157051. The next prime is 45157061. The reversal of 45157055 is 55075154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55075154 = 2 ⋅27537577.

It is not a de Polignac number, because 45157055 - 2² = 45157051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45157051) 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, 4515701 + ... + 4515710.

It is an arithmetic number, because the mean of its divisors is an integer number (13547118).

Almost surely, 2^45157055 is an apocalyptic number.

45157055 is a deficient number, since it is larger than the sum of its proper divisors (9031417).

45157055 is an equidigital number, since it uses as much as digits as its factorization.

45157055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9031416.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 45157055 is about 6719.8999248501. The cubic root of 45157055 is about 356.1026484075.

The spelling of 45157055 in words is "forty-five million, one hundred fifty-seven thousand, fifty-five".