45172252 has 24 divisors (see below), whose sum is σ = 80438400. Its totient is φ = 22193136.

The previous prime is 45172243. The next prime is 45172273. The reversal of 45172252 is 25227154.

It is a self number, because there is not a number n which added to its sum of digits gives 45172252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118999 + ... + 119377.

It is an arithmetic number, because the mean of its divisors is an integer number (3351600).

Almost surely, 2^45172252 is an apocalyptic number.

It is an amenable number.

45172252 is a deficient number, since it is larger than the sum of its proper divisors (35266148).

45172252 is a wasteful number, since it uses less digits than its factorization.

45172252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 823 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 45172252 is about 6721.0305757376. The cubic root of 45172252 is about 356.1425911140.

The spelling of 45172252 in words is "forty-five million, one hundred seventy-two thousand, two hundred fifty-two".