52390550 has 24 divisors (see below), whose sum is σ = 101685456. Its totient is φ = 20044640.

The previous prime is 52390537. The next prime is 52390561. The reversal of 52390550 is 5509325.

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, 21629 + ... + 23928.

It is an arithmetic number, because the mean of its divisors is an integer number (4236894).

Almost surely, 2^52390550 is an apocalyptic number.

52390550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52390550 is a deficient number, since it is larger than the sum of its proper divisors (49294906).

52390550 is a wasteful number, since it uses less digits than its factorization.

52390550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45592 (or 45587 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 52390550 is about 7238.1316650086. The cubic root of 52390550 is about 374.1832297292.

Adding to 52390550 its reverse (5509325), we get a palindrome (57899875).

The spelling of 52390550 in words is "fifty-two million, three hundred ninety thousand, five hundred fifty".