53071660 has 12 divisors (see below), whose sum is σ = 111450528. Its totient is φ = 21228656.

The previous prime is 53071651. The next prime is 53071661. The reversal of 53071660 is 6617035.

It is not an unprimeable number, because it can be changed into a prime (53071661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1326772 + ... + 1326811.

It is an arithmetic number, because the mean of its divisors is an integer number (9287544).

Almost surely, 2^53071660 is an apocalyptic number.

It is an amenable number.

53071660 is an abundant number, since it is smaller than the sum of its proper divisors (58378868).

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

53071660 is a wasteful number, since it uses less digits than its factorization.

53071660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653592 (or 2653590 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 53071660 is about 7285.0298558070. The cubic root of 53071660 is about 375.7977919083.

Adding to 53071660 its reverse (6617035), we get a palindrome (59688695).

The spelling of 53071660 in words is "fifty-three million, seventy-one thousand, six hundred sixty".