52390965 has 32 divisors (see below), whose sum is σ = 94608000. Its totient is φ = 24523520.

The previous prime is 52390939. The next prime is 52390969. The reversal of 52390965 is 56909325.

It is not a de Polignac number, because 52390965 - 2⁶ = 52390901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52390969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 690 + ... + 10259.

It is an arithmetic number, because the mean of its divisors is an integer number (2956500).

Almost surely, 2^52390965 is an apocalyptic number.

52390965 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52390965 is a deficient number, since it is larger than the sum of its proper divisors (42217035).

52390965 is a wasteful number, since it uses less digits than its factorization.

52390965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10997.

The product of its (nonzero) digits is 72900, while the sum is 39.

The square root of 52390965 is about 7238.1603325707. The cubic root of 52390965 is about 374.1842177294.

The spelling of 52390965 in words is "fifty-two million, three hundred ninety thousand, nine hundred sixty-five".