52657539 has 16 divisors (see below), whose sum is σ = 76738944. Its totient is φ = 31852800.

The previous prime is 52657537. The next prime is 52657547. The reversal of 52657539 is 93575625.

It is not a de Polignac number, because 52657539 - 2¹ = 52657537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52657539.

It is not an unprimeable number, because it can be changed into a prime (52657537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21024 + ... + 23394.

It is an arithmetic number, because the mean of its divisors is an integer number (4796184).

Almost surely, 2^52657539 is an apocalyptic number.

52657539 is a deficient number, since it is larger than the sum of its proper divisors (24081405).

52657539 is a wasteful number, since it uses less digits than its factorization.

52657539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058.

The product of its digits is 283500, while the sum is 42.

The square root of 52657539 is about 7256.5514536865. The cubic root of 52657539 is about 374.8177816939.

The spelling of 52657539 in words is "fifty-two million, six hundred fifty-seven thousand, five hundred thirty-nine".