53870920 has 16 divisors (see below), whose sum is σ = 121209660. Its totient is φ = 21548352.

The previous prime is 53870917. The next prime is 53870933. The reversal of 53870920 is 2907835.

It can be written as a sum of positive squares in 2 ways, for example, as 45239076 + 8631844 = 6726^2 + 2938^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673347 + ... + 673426.

Almost surely, 2^53870920 is an apocalyptic number.

It is an amenable number.

53870920 is an abundant number, since it is smaller than the sum of its proper divisors (67338740).

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

53870920 is a wasteful number, since it uses less digits than its factorization.

53870920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346784 (or 1346780 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 53870920 is about 7339.6811919865. The cubic root of 53870920 is about 377.6749068871.

The spelling of 53870920 in words is "fifty-three million, eight hundred seventy thousand, nine hundred twenty".