45072532 has 12 divisors (see below), whose sum is σ = 79208640. Its totient is φ = 22441496.

The previous prime is 45072523. The next prime is 45072553. The reversal of 45072532 is 23527054.

It is a self number, because there is not a number n which added to its sum of digits gives 45072532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22618 + ... + 24529.

It is an arithmetic number, because the mean of its divisors is an integer number (6600720).

Almost surely, 2^45072532 is an apocalyptic number.

It is an amenable number.

45072532 is a deficient number, since it is larger than the sum of its proper divisors (34136108).

45072532 is a wasteful number, since it uses less digits than its factorization.

45072532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47390 (or 47388 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 45072532 is about 6713.6079718732. The cubic root of 45072532 is about 355.8803305220.

Adding to 45072532 its reverse (23527054), we get a palindrome (68599586).

The spelling of 45072532 in words is "forty-five million, seventy-two thousand, five hundred thirty-two".