45315855 has 96 divisors (see below), whose sum is σ = 92951040. Its totient is φ = 20995200.

The previous prime is 45315841. The next prime is 45315857. The reversal of 45315855 is 55851354.

It is a happy number.

45315855 is a `hidden beast` number, since 45 + 31 + 585 + 5 = 666.

It is not a de Polignac number, because 45315855 - 2¹⁰ = 45314831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45315857) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 300030 + ... + 300180.

It is an arithmetic number, because the mean of its divisors is an integer number (968240).

Almost surely, 2^45315855 is an apocalyptic number.

45315855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45315855 is an abundant number, since it is smaller than the sum of its proper divisors (47635185).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45315855 is a wasteful number, since it uses less digits than its factorization.

45315855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 191 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The square root of 45315855 is about 6731.7052074493. The cubic root of 45315855 is about 356.5195854186.

The spelling of 45315855 in words is "forty-five million, three hundred fifteen thousand, eight hundred fifty-five".