53875990 has 48 divisors (see below), whose sum is σ = 115478352. Its totient is φ = 18035136.

The previous prime is 53875981. The next prime is 53875999. The reversal of 53875990 is 9957835.

It is an interprime number because it is at equal distance from previous prime (53875981) and next prime (53875999).

It is a self number, because there is not a number n which added to its sum of digits gives 53875990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53875999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19792 + ... + 22348.

It is an arithmetic number, because the mean of its divisors is an integer number (2405799).

Almost surely, 2^53875990 is an apocalyptic number.

53875990 is an abundant number, since it is smaller than the sum of its proper divisors (61602362).

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

53875990 is a wasteful number, since it uses less digits than its factorization.

53875990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621 (or 2614 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 53875990 is about 7340.0265667094. The cubic root of 53875990 is about 377.6867546627.

The spelling of 53875990 in words is "fifty-three million, eight hundred seventy-five thousand, nine hundred ninety".