52705557 has 12 divisors (see below), whose sum is σ = 78755820. Its totient is φ = 33925248.

The previous prime is 52705529. The next prime is 52705579. The reversal of 52705557 is 75550725.

It can be written as a sum of positive squares in 2 ways, for example, as 36108081 + 16597476 = 6009^2 + 4074^2 .

It is not a de Polignac number, because 52705557 - 2²⁰ = 51656981 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52705507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100708 + ... + 101229.

It is an arithmetic number, because the mean of its divisors is an integer number (6562985).

Almost surely, 2^52705557 is an apocalyptic number.

It is an amenable number.

52705557 is a deficient number, since it is larger than the sum of its proper divisors (26050263).

52705557 is a wasteful number, since it uses less digits than its factorization.

52705557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201972 (or 201969 counting only the distinct ones).

The product of its (nonzero) digits is 61250, while the sum is 36.

The square root of 52705557 is about 7259.8592961572. The cubic root of 52705557 is about 374.9316782198.

The spelling of 52705557 in words is "fifty-two million, seven hundred five thousand, five hundred fifty-seven".