52273638 has 24 divisors (see below), whose sum is σ = 115895208. Its totient is φ = 17019072.

The previous prime is 52273619. The next prime is 52273643. The reversal of 52273638 is 83637225.

52273638 is a `hidden beast` number, since 522 + 73 + 63 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32995 + ... + 34542.

It is an arithmetic number, because the mean of its divisors is an integer number (4828967).

Almost surely, 2^52273638 is an apocalyptic number.

52273638 is an abundant number, since it is smaller than the sum of its proper divisors (63621570).

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

52273638 is a wasteful number, since it uses less digits than its factorization.

52273638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67588 (or 67585 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 52273638 is about 7230.0510371643. The cubic root of 52273638 is about 373.9046865507.

The spelling of 52273638 in words is "fifty-two million, two hundred seventy-three thousand, six hundred thirty-eight".