45321552 has 40 divisors (see below), whose sum is σ = 130090880. Its totient is φ = 15107040.

The previous prime is 45321511. The next prime is 45321553. The reversal of 45321552 is 25512354.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45321553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52024 + ... + 52887.

It is an arithmetic number, because the mean of its divisors is an integer number (3252272).

Almost surely, 2^45321552 is an apocalyptic number.

It is an amenable number.

45321552 is an abundant number, since it is smaller than the sum of its proper divisors (84769328).

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

45321552 is a wasteful number, since it uses less digits than its factorization.

45321552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104928 (or 104916 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 45321552 is about 6732.1283410226. The cubic root of 45321552 is about 356.5345250534.

It can be divided in two parts, 4532 and 1552, that added together give a square (6084 = 78²).

The spelling of 45321552 in words is "forty-five million, three hundred twenty-one thousand, five hundred fifty-two".