47564365 has 4 divisors (see below), whose sum is σ = 57077244. Its totient is φ = 38051488.

The previous prime is 47564347. The next prime is 47564371. The reversal of 47564365 is 56346574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56346574 = 2 ⋅28173287.

It can be written as a sum of positive squares in 2 ways, for example, as 35307364 + 12257001 = 5942^2 + 3501^2 .

It is a cyclic number.

It is not a de Polignac number, because 47564365 - 2²³ = 39175757 is a prime.

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 Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4756432 + ... + 4756441.

It is an arithmetic number, because the mean of its divisors is an integer number (14269311).

Almost surely, 2^47564365 is an apocalyptic number.

It is an amenable number.

47564365 is a deficient number, since it is larger than the sum of its proper divisors (9512879).

47564365 is an equidigital number, since it uses as much as digits as its factorization.

47564365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512878.

The product of its digits is 302400, while the sum is 40.

The square root of 47564365 is about 6896.6923231358. The cubic root of 47564365 is about 362.3213293107.

The spelling of 47564365 in words is "forty-seven million, five hundred sixty-four thousand, three hundred sixty-five".