53971560 has 48 divisors (see below), whose sum is σ = 175408740. Its totient is φ = 14392320.

The previous prime is 53971553. The next prime is 53971591. The reversal of 53971560 is 6517935.

It is a happy number.

53971560 is a `hidden beast` number, since 5 + 3 + 97 + 1 + 560 = 666.

53971560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 53846244 + 125316 = 7338^2 + 354^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74601 + ... + 75320.

Almost surely, 2^53971560 is an apocalyptic number.

It is an amenable number.

53971560 is an abundant number, since it is smaller than the sum of its proper divisors (121437180).

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

53971560 is a wasteful number, since it uses less digits than its factorization.

53971560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149938 (or 149931 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 53971560 is about 7346.5338765979. The cubic root of 53971560 is about 377.9099474740.

The spelling of 53971560 in words is "fifty-three million, nine hundred seventy-one thousand, five hundred sixty".