52739557 has 8 divisors (see below), whose sum is σ = 56894040. Its totient is φ = 48599040.

The previous prime is 52739549. The next prime is 52739567. The reversal of 52739557 is 75593725.

It can be written as a sum of positive squares in 4 ways, for example, as 15358561 + 37380996 = 3919^2 + 6114^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52739557 - 2³ = 52739549 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 (52739527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5169 + ... + 11497.

It is an arithmetic number, because the mean of its divisors is an integer number (7111755).

Almost surely, 2^52739557 is an apocalyptic number.

It is an amenable number.

52739557 is a deficient number, since it is larger than the sum of its proper divisors (4154483).

52739557 is a wasteful number, since it uses less digits than its factorization.

52739557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983.

The product of its digits is 330750, while the sum is 43.

The square root of 52739557 is about 7262.2005618132. The cubic root of 52739557 is about 375.0122828569.

The spelling of 52739557 in words is "fifty-two million, seven hundred thirty-nine thousand, five hundred fifty-seven".