53660831 has 6 divisors (see below), whose sum is σ = 62421840. Its totient is φ = 45994956.

The previous prime is 53660801. The next prime is 53660833. The reversal of 53660831 is 13806635.

It is a de Polignac number, because none of the positive numbers 2^k-53660831 is a prime.

It is a super-2 number, since 2×53660831² = 5758969567221122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53660833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 547511 + ... + 547608.

It is an arithmetic number, because the mean of its divisors is an integer number (10403640).

Almost surely, 2^53660831 is an apocalyptic number.

53660831 is a deficient number, since it is larger than the sum of its proper divisors (8761009).

53660831 is a wasteful number, since it uses less digits than its factorization.

53660831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095133 (or 1095126 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 53660831 is about 7325.3553497424. The cubic root of 53660831 is about 377.1833076298.

The spelling of 53660831 in words is "fifty-three million, six hundred sixty thousand, eight hundred thirty-one".