52391563 has 8 divisors (see below), whose sum is σ = 61336800. Its totient is φ = 43811520.

The previous prime is 52391561. The next prime is 52391597. The reversal of 52391563 is 36519325.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52391563 - 2¹ = 52391561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52391561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90988 + ... + 91561.

It is an arithmetic number, because the mean of its divisors is an integer number (7667100).

Almost surely, 2^52391563 is an apocalyptic number.

52391563 is a deficient number, since it is larger than the sum of its proper divisors (8945237).

52391563 is a wasteful number, since it uses less digits than its factorization.

52391563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182597.

The product of its digits is 24300, while the sum is 34.

The square root of 52391563 is about 7238.2016412918. The cubic root of 52391563 is about 374.1856413929.

The spelling of 52391563 in words is "fifty-two million, three hundred ninety-one thousand, five hundred sixty-three".