45815656 has 8 divisors (see below), whose sum is σ = 85904370. Its totient is φ = 22907824.

The previous prime is 45815641. The next prime is 45815659. The reversal of 45815656 is 65651854.

It can be written as a sum of positive squares in only one way, i.e., 32376100 + 13439556 = 5690^2 + 3666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (45815659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2863471 + ... + 2863486.

Almost surely, 2^45815656 is an apocalyptic number.

It is an amenable number.

45815656 is a deficient number, since it is larger than the sum of its proper divisors (40088714).

45815656 is a wasteful number, since it uses less digits than its factorization.

45815656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5726963 (or 5726959 counting only the distinct ones).

The product of its digits is 144000, while the sum is 40.

The square root of 45815656 is about 6768.7263203649. The cubic root of 45815656 is about 357.8255134223.

The spelling of 45815656 in words is "forty-five million, eight hundred fifteen thousand, six hundred fifty-six".