53131020 has 24 divisors (see below), whose sum is σ = 148767024. Its totient is φ = 14168256.

The previous prime is 53131019. The next prime is 53131027. The reversal of 53131020 is 2013135.

It is a happy number.

53131020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (53131027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 442699 + ... + 442818.

It is an arithmetic number, because the mean of its divisors is an integer number (6198626).

Almost surely, 2^53131020 is an apocalyptic number.

It is an amenable number.

53131020 is an abundant number, since it is smaller than the sum of its proper divisors (95636004).

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

53131020 is a wasteful number, since it uses less digits than its factorization.

53131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885529 (or 885527 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 53131020 is about 7289.1028254512. The cubic root of 53131020 is about 375.9378481094.

Adding to 53131020 its reverse (2013135), we get a palindrome (55144155).

The spelling of 53131020 in words is "fifty-three million, one hundred thirty-one thousand, twenty".