52370857 has 30 divisors (see below), whose sum is σ = 67930890. Its totient is φ = 40249440.

The previous prime is 52370849. The next prime is 52370887. The reversal of 52370857 is 75807325.

It can be written as a sum of positive squares in only one way, i.e., 45914176 + 6456681 = 6776^2 + 2541^2 .

It is not a de Polignac number, because 52370857 - 2³ = 52370849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52370827) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 717373 + ... + 717445.

It is an arithmetic number, because the mean of its divisors is an integer number (2264363).

Almost surely, 2^52370857 is an apocalyptic number.

It is an amenable number.

52370857 is a deficient number, since it is larger than the sum of its proper divisors (15560033).

52370857 is an frugal number, since it uses more digits than its factorization.

52370857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 52370857 is about 7236.7711722839. The cubic root of 52370857 is about 374.1363401418.

The spelling of 52370857 in words is "fifty-two million, three hundred seventy thousand, eight hundred fifty-seven".