53990244 has 72 divisors (see below), whose sum is σ = 170159808. Its totient is φ = 14022720.

The previous prime is 53990243. The next prime is 53990273. The reversal of 53990244 is 44209935.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 53990199 and 53990208.

It is not an unprimeable number, because it can be changed into a prime (53990243) 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, 6967 + ... + 12510.

Almost surely, 2^53990244 is an apocalyptic number.

It is an amenable number.

53990244 is an abundant number, since it is smaller than the sum of its proper divisors (116169564).

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

53990244 is a wasteful number, since it uses less digits than its factorization.

53990244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19505 (or 19500 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 53990244 is about 7347.8053866444. The cubic root of 53990244 is about 377.9535510239.

The spelling of 53990244 in words is "fifty-three million, nine hundred ninety thousand, two hundred forty-four".