53897980 has 12 divisors (see below), whose sum is σ = 113185800. Its totient is φ = 21559184.

The previous prime is 53897957. The next prime is 53897981. The reversal of 53897980 is 8979835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53897981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1347430 + ... + 1347469.

It is an arithmetic number, because the mean of its divisors is an integer number (9432150).

Almost surely, 2^53897980 is an apocalyptic number.

It is an amenable number.

53897980 is an abundant number, since it is smaller than the sum of its proper divisors (59287820).

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

53897980 is a wasteful number, since it uses less digits than its factorization.

53897980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694908 (or 2694906 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 53897980 is about 7341.5243648714. The cubic root of 53897980 is about 377.7381331588.

The spelling of 53897980 in words is "fifty-three million, eight hundred ninety-seven thousand, nine hundred eighty".