52315547 has 4 divisors (see below), whose sum is σ = 54590160. Its totient is φ = 50040936.

The previous prime is 52315519. The next prime is 52315553. The reversal of 52315547 is 74551325.

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

It is a cyclic number.

It is not a de Polignac number, because 52315547 - 2²⁴ = 35538331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52315597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137272 + ... + 1137317.

It is an arithmetic number, because the mean of its divisors is an integer number (13647540).

Almost surely, 2^52315547 is an apocalyptic number.

52315547 is a deficient number, since it is larger than the sum of its proper divisors (2274613).

52315547 is a wasteful number, since it uses less digits than its factorization.

52315547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274612.

The product of its digits is 21000, while the sum is 32.

The square root of 52315547 is about 7232.9487071318. The cubic root of 52315547 is about 374.0045825742.

The spelling of 52315547 in words is "fifty-two million, three hundred fifteen thousand, five hundred forty-seven".