53871940 has 24 divisors (see below), whose sum is σ = 113383872. Its totient is φ = 21500640.

The previous prime is 53871913. The next prime is 53871941. The reversal of 53871940 is 4917835.

It is a self number, because there is not a number n which added to its sum of digits gives 53871940.

It is not an unprimeable number, because it can be changed into a prime (53871941) 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, 6975 + ... + 12505.

It is an arithmetic number, because the mean of its divisors is an integer number (4724328).

Almost surely, 2^53871940 is an apocalyptic number.

It is an amenable number.

53871940 is an abundant number, since it is smaller than the sum of its proper divisors (59511932).

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

53871940 is a wasteful number, since it uses less digits than its factorization.

53871940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027 (or 6025 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 53871940 is about 7339.7506769644. The cubic root of 53871940 is about 377.6772905230.

The spelling of 53871940 in words is "fifty-three million, eight hundred seventy-one thousand, nine hundred forty".