52015641 has 4 divisors (see below), whose sum is σ = 69354192. Its totient is φ = 34677092.

The previous prime is 52015637. The next prime is 52015643. The reversal of 52015641 is 14651025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52015641 - 2² = 52015637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52015643) 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, 8669271 + ... + 8669276.

It is an arithmetic number, because the mean of its divisors is an integer number (17338548).

Almost surely, 2^52015641 is an apocalyptic number.

It is an amenable number.

52015641 is a deficient number, since it is larger than the sum of its proper divisors (17338551).

52015641 is a wasteful number, since it uses less digits than its factorization.

52015641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17338550.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 52015641 is about 7212.1869776095. The cubic root of 52015641 is about 373.2885351398.

Adding to 52015641 its reverse (14651025), we get a palindrome (66666666).

It can be divided in two parts, 520 and 15641, that added together give a palindrome (16161).

The spelling of 52015641 in words is "fifty-two million, fifteen thousand, six hundred forty-one".