53086920 has 128 divisors (see below), whose sum is σ = 172160640. Its totient is φ = 13045760.

The previous prime is 53086877. The next prime is 53086927. The reversal of 53086920 is 2968035.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53086927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107875 + ... + 108365.

It is an arithmetic number, because the mean of its divisors is an integer number (1345005).

Almost surely, 2^53086920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53086920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86080320).

53086920 is an abundant number, since it is smaller than the sum of its proper divisors (119073720).

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

53086920 is a wasteful number, since it uses less digits than its factorization.

53086920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 53086920 is about 7286.0771338217. The cubic root of 53086920 is about 375.8338068910.

The spelling of 53086920 in words is "fifty-three million, eighty-six thousand, nine hundred twenty".