52973220 has 48 divisors (see below), whose sum is σ = 148740480. Its totient is φ = 14086656.

The previous prime is 52973153. The next prime is 52973231. The reversal of 52973220 is 2237925.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 24961 + ... + 26999.

It is an arithmetic number, because the mean of its divisors is an integer number (3098760).

Almost surely, 2^52973220 is an apocalyptic number.

It is an amenable number.

52973220 is an abundant number, since it is smaller than the sum of its proper divisors (95767260).

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

52973220 is a wasteful number, since it uses less digits than its factorization.

52973220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484 (or 2482 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 52973220 is about 7278.2703989341. The cubic root of 52973220 is about 375.5652985165.

The spelling of 52973220 in words is "fifty-two million, nine hundred seventy-three thousand, two hundred twenty".