53072660 has 12 divisors (see below), whose sum is σ = 111452628. Its totient is φ = 21229056.

The previous prime is 53072659. The next prime is 53072687. The reversal of 53072660 is 6627035.

It can be written as a sum of positive squares in 2 ways, for example, as 40934404 + 12138256 = 6398^2 + 3484^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326797 + ... + 1326836.

It is an arithmetic number, because the mean of its divisors is an integer number (9287719).

Almost surely, 2^53072660 is an apocalyptic number.

It is an amenable number.

53072660 is an abundant number, since it is smaller than the sum of its proper divisors (58379968).

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

53072660 is a wasteful number, since it uses less digits than its factorization.

53072660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653642 (or 2653640 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 53072660 is about 7285.0984893823. The cubic root of 53072660 is about 375.8001522103.

Adding to 53072660 its reverse (6627035), we get a palindrome (59699695).

The spelling of 53072660 in words is "fifty-three million, seventy-two thousand, six hundred sixty".