53865980 has 24 divisors (see below), whose sum is σ = 129278688. Its totient is φ = 18468288.

The previous prime is 53865961. The next prime is 53865983. The reversal of 53865980 is 8956835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53865983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192239 + ... + 192518.

It is an arithmetic number, because the mean of its divisors is an integer number (5386612).

Almost surely, 2^53865980 is an apocalyptic number.

It is an amenable number.

53865980 is an abundant number, since it is smaller than the sum of its proper divisors (75412708).

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

53865980 is a wasteful number, since it uses less digits than its factorization.

53865980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384773 (or 384771 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 53865980 is about 7339.3446573928. The cubic root of 53865980 is about 377.6633621856.

It can be divided in two parts, 53865 and 980, that added together give a palindrome (54845).

The spelling of 53865980 in words is "fifty-three million, eight hundred sixty-five thousand, nine hundred eighty".