52273920 has 72 divisors (see below), whose sum is σ = 166962096. Its totient is φ = 13938688.

The previous prime is 52273909. The next prime is 52273943. The reversal of 52273920 is 2937225.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2967 + ... + 10646.

It is an arithmetic number, because the mean of its divisors is an integer number (2318918).

Almost surely, 2^52273920 is an apocalyptic number.

It is an amenable number.

52273920 is an abundant number, since it is smaller than the sum of its proper divisors (114688176).

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

52273920 is a wasteful number, since it uses less digits than its factorization.

52273920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13637 (or 13623 counting only the distinct ones).

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

The square root of 52273920 is about 7230.0705390750. The cubic root of 52273920 is about 373.9053589159.

The spelling of 52273920 in words is "fifty-two million, two hundred seventy-three thousand, nine hundred twenty".