53161020 has 72 divisors (see below), whose sum is σ = 175921200. Its totient is φ = 12887040.

The previous prime is 53161019. The next prime is 53161039. The reversal of 53161020 is 2016135.

53161020 is a `hidden beast` number, since 5 + 31 + 610 + 20 = 666.

53161020 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 (18).

It is a junction number, because it is equal to n+sod(n) for n = 53160984 and 53161002.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 11445 + ... + 15404.

It is an arithmetic number, because the mean of its divisors is an integer number (2443350).

Almost surely, 2^53161020 is an apocalyptic number.

It is an amenable number.

53161020 is an abundant number, since it is smaller than the sum of its proper divisors (122760180).

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

53161020 is a wasteful number, since it uses less digits than its factorization.

53161020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26875 (or 26870 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 53161020 is about 7291.1604014725. The cubic root of 53161020 is about 376.0085915496.

Adding to 53161020 its reverse (2016135), we get a palindrome (55177155).

It can be divided in two parts, 5316 and 1020, that added together give a palindrome (6336).

The spelling of 53161020 in words is "fifty-three million, one hundred sixty-one thousand, twenty".