45523566 has 64 divisors (see below), whose sum is σ = 111248640. Its totient is φ = 13684320.

The previous prime is 45523559. The next prime is 45523573. The reversal of 45523566 is 66532554.

It is a happy number.

45523566 is a `hidden beast` number, since 45 + 52 + 3 + 566 = 666.

It is an interprime number because it is at equal distance from previous prime (45523559) and next prime (45523573).

It is a super-2 number, since 2×45523566² = 4144790122712712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45523566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102541 + ... + 102983.

It is an arithmetic number, because the mean of its divisors is an integer number (1738260).

Almost surely, 2^45523566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45523566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55624320).

45523566 is an abundant number, since it is smaller than the sum of its proper divisors (65725074).

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

45523566 is a wasteful number, since it uses less digits than its factorization.

45523566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 632 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 45523566 is about 6747.1153836288. The cubic root of 45523566 is about 357.0634729314.

It can be divided in two parts, 4552 and 3566, that added together give a palindrome (8118).

The spelling of 45523566 in words is "forty-five million, five hundred twenty-three thousand, five hundred sixty-six".