52638790 has 32 divisors (see below), whose sum is σ = 98249760. Its totient is φ = 20289024.

The previous prime is 52638787. The next prime is 52638809. The reversal of 52638790 is 9783625.

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 15 ways as a sum of consecutive naturals, for example, 41181 + ... + 42439.

It is an arithmetic number, because the mean of its divisors is an integer number (3070305).

Almost surely, 2^52638790 is an apocalyptic number.

52638790 is a deficient number, since it is larger than the sum of its proper divisors (45610970).

52638790 is a wasteful number, since it uses less digits than its factorization.

52638790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 52638790 is about 7255.2594715834. The cubic root of 52638790 is about 374.7732911173.

The spelling of 52638790 in words is "fifty-two million, six hundred thirty-eight thousand, seven hundred ninety".