45256665 has 16 divisors (see below), whose sum is σ = 72562176. Its totient is φ = 24086400.

The previous prime is 45256657. The next prime is 45256789. The reversal of 45256665 is 56665254.

It is a happy number.

It is not a de Polignac number, because 45256665 - 2³ = 45256657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4920 + ... + 10710.

It is an arithmetic number, because the mean of its divisors is an integer number (4535136).

Almost surely, 2^45256665 is an apocalyptic number.

It is an amenable number.

45256665 is a deficient number, since it is larger than the sum of its proper divisors (27305511).

45256665 is a wasteful number, since it uses less digits than its factorization.

45256665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6320.

The product of its digits is 216000, while the sum is 39.

The square root of 45256665 is about 6727.3074108443. The cubic root of 45256665 is about 356.3642932758.

The spelling of 45256665 in words is "forty-five million, two hundred fifty-six thousand, six hundred sixty-five".