52144637 has 4 divisors (see below), whose sum is σ = 52272540. Its totient is φ = 52016736.

The previous prime is 52144597. The next prime is 52144643. The reversal of 52144637 is 73644125.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40780996 + 11363641 = 6386^2 + 3371^2 .

It is a cyclic number.

It is not a de Polignac number, because 52144637 - 2²⁰ = 51096061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52144537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63338 + ... + 64155.

It is an arithmetic number, because the mean of its divisors is an integer number (13068135).

Almost surely, 2^52144637 is an apocalyptic number.

It is an amenable number.

52144637 is a deficient number, since it is larger than the sum of its proper divisors (127903).

52144637 is a wasteful number, since it uses less digits than its factorization.

52144637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127902.

The product of its digits is 20160, while the sum is 32.

The square root of 52144637 is about 7221.1243584362. The cubic root of 52144637 is about 373.5968589203.

The spelling of 52144637 in words is "fifty-two million, one hundred forty-four thousand, six hundred thirty-seven".