53320131 has 24 divisors (see below), whose sum is σ = 79366560. Its totient is φ = 34473600.

The previous prime is 53320121. The next prime is 53320139. The reversal of 53320131 is 13102335.

53320131 is a `hidden beast` number, since 533 + 2 + 0 + 131 = 666.

It is not a de Polignac number, because 53320131 - 2⁹ = 53319619 is a prime.

It is a super-2 number, since 2×53320131² = 5686072739714322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53320139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84186 + ... + 84816.

It is an arithmetic number, because the mean of its divisors is an integer number (3306940).

Almost surely, 2^53320131 is an apocalyptic number.

53320131 is a deficient number, since it is larger than the sum of its proper divisors (26046429).

53320131 is a wasteful number, since it uses less digits than its factorization.

53320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 53320131 is about 7302.0634754842. The cubic root of 53320131 is about 376.3833493109.

Adding to 53320131 its reverse (13102335), we get a palindrome (66422466).

The spelling of 53320131 in words is "fifty-three million, three hundred twenty thousand, one hundred thirty-one".