52081860 has 48 divisors (see below), whose sum is σ = 150538752. Its totient is φ = 13440000.

The previous prime is 52081859. The next prime is 52081877. The reversal of 52081860 is 6818025.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12141 + ... + 15860.

It is an arithmetic number, because the mean of its divisors is an integer number (3136224).

Almost surely, 2^52081860 is an apocalyptic number.

It is an amenable number.

52081860 is an abundant number, since it is smaller than the sum of its proper divisors (98456892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52081860 is a wasteful number, since it uses less digits than its factorization.

52081860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28044 (or 28042 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 52081860 is about 7216.7762886208. The cubic root of 52081860 is about 373.4468741250.

Adding to 52081860 its reverse (6818025), we get a palindrome (58899885).

The spelling of 52081860 in words is "fifty-two million, eighty-one thousand, eight hundred sixty".