52390966 has 4 divisors (see below), whose sum is σ = 78586452. Its totient is φ = 26195482.

The previous prime is 52390939. The next prime is 52390969. The reversal of 52390966 is 66909325.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 13097740 + ... + 13097743.

It is an arithmetic number, because the mean of its divisors is an integer number (19646613).

Almost surely, 2^52390966 is an apocalyptic number.

52390966 is a deficient number, since it is larger than the sum of its proper divisors (26195486).

52390966 is a wasteful number, since it uses less digits than its factorization.

52390966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26195485.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 52390966 is about 7238.1604016490. The cubic root of 52390966 is about 374.1842201101.

The spelling of 52390966 in words is "fifty-two million, three hundred ninety thousand, nine hundred sixty-six".