52642788 has 48 divisors (see below), whose sum is σ = 135535680. Its totient is φ = 15769600.

The previous prime is 52642781. The next prime is 52642813. The reversal of 52642788 is 88724625.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (52642781) 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, 9508 + ... + 13988.

It is an arithmetic number, because the mean of its divisors is an integer number (2823660).

Almost surely, 2^52642788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52642788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67767840).

52642788 is an abundant number, since it is smaller than the sum of its proper divisors (82892892).

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

52642788 is a wasteful number, since it uses less digits than its factorization.

52642788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588 (or 4586 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 52642788 is about 7255.5349906123. The cubic root of 52642788 is about 374.7827790867.

The spelling of 52642788 in words is "fifty-two million, six hundred forty-two thousand, seven hundred eighty-eight".