52857755 has 8 divisors (see below), whose sum is σ = 63558432. Its totient is φ = 42200128.

The previous prime is 52857713. The next prime is 52857757. The reversal of 52857755 is 55775825.

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 52857755 - 2⁸ = 52857499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52857757) 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, 7994 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (7944804).

Almost surely, 2^52857755 is an apocalyptic number.

52857755 is a deficient number, since it is larger than the sum of its proper divisors (10700677).

52857755 is a wasteful number, since it uses less digits than its factorization.

52857755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21525.

The product of its digits is 490000, while the sum is 44.

The square root of 52857755 is about 7270.3338987972. Note that the first 3 decimals coincide. The cubic root of 52857755 is about 375.2922285105.

The spelling of 52857755 in words is "fifty-two million, eight hundred fifty-seven thousand, seven hundred fifty-five".