45215258 has 16 divisors (see below), whose sum is σ = 75989664. Its totient is φ = 19996560.

The previous prime is 45215227. The next prime is 45215273. The reversal of 45215258 is 85251254.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26960 + ... + 28587.

It is an arithmetic number, because the mean of its divisors is an integer number (4749354).

Almost surely, 2^45215258 is an apocalyptic number.

45215258 is a deficient number, since it is larger than the sum of its proper divisors (30774406).

45215258 is a wasteful number, since it uses less digits than its factorization.

45215258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55597.

The product of its digits is 16000, while the sum is 32.

The square root of 45215258 is about 6724.2291751546. The cubic root of 45215258 is about 356.2555764799.

It can be divided in two parts, 4521 and 5258, that added together give a palindrome (9779).

The spelling of 45215258 in words is "forty-five million, two hundred fifteen thousand, two hundred fifty-eight".