53998404 has 48 divisors (see below), whose sum is σ = 130744320. Its totient is φ = 17327520.

The previous prime is 53998403. The next prime is 53998421. The reversal of 53998404 is 40489935.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (53998403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140797 + ... + 141179.

It is an arithmetic number, because the mean of its divisors is an integer number (2723840).

Almost surely, 2^53998404 is an apocalyptic number.

It is an amenable number.

53998404 is an abundant number, since it is smaller than the sum of its proper divisors (76745916).

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

53998404 is a wasteful number, since it uses less digits than its factorization.

53998404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 53998404 is about 7348.3606335019. The cubic root of 53998404 is about 377.9725911651.

The spelling of 53998404 in words is "fifty-three million, nine hundred ninety-eight thousand, four hundred four".