52800385 has 32 divisors (see below), whose sum is σ = 73872000. Its totient is φ = 35804160.

The previous prime is 52800383. The next prime is 52800403. The reversal of 52800385 is 58300825.

It is not a de Polignac number, because 52800385 - 2¹ = 52800383 is a prime.

It is a super-2 number, since 2×52800385² = 5575761312296450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52800383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139126 + ... + 139504.

It is an arithmetic number, because the mean of its divisors is an integer number (2308500).

Almost surely, 2^52800385 is an apocalyptic number.

52800385 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52800385 is a deficient number, since it is larger than the sum of its proper divisors (21071615).

52800385 is a wasteful number, since it uses less digits than its factorization.

52800385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 52800385 is about 7266.3873417263. The cubic root of 52800385 is about 375.1564029074.

The spelling of 52800385 in words is "fifty-two million, eight hundred thousand, three hundred eighty-five".