45665256 has 192 divisors, whose sum is σ = 149385600. Its totient is φ = 11515392.

The previous prime is 45665209. The next prime is 45665261. The reversal of 45665256 is 65256654.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 443301 + ... + 443403.

It is an arithmetic number, because the mean of its divisors is an integer number (778050).

Almost surely, 2^45665256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45665256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74692800).

45665256 is an abundant number, since it is smaller than the sum of its proper divisors (103720344).

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

45665256 is a wasteful number, since it uses less digits than its factorization.

45665256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 157 counting only the distinct ones).

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

The square root of 45665256 is about 6757.6072688489. The cubic root of 45665256 is about 357.4335371255.

The spelling of 45665256 in words is "forty-five million, six hundred sixty-five thousand, two hundred fifty-six".