52915861 has 4 divisors (see below), whose sum is σ = 53812800. Its totient is φ = 52018924.

The previous prime is 52915829. The next prime is 52915867. The reversal of 52915861 is 16851925.

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 52915861 - 2⁵ = 52915829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52915861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52915867) 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, 448381 + ... + 448498.

It is an arithmetic number, because the mean of its divisors is an integer number (13453200).

Almost surely, 2^52915861 is an apocalyptic number.

It is an amenable number.

52915861 is a deficient number, since it is larger than the sum of its proper divisors (896939).

52915861 is an equidigital number, since it uses as much as digits as its factorization.

52915861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896938.

The product of its digits is 21600, while the sum is 37.

The square root of 52915861 is about 7274.3289037546. The cubic root of 52915861 is about 375.4296964781.

The spelling of 52915861 in words is "fifty-two million, nine hundred fifteen thousand, eight hundred sixty-one".