53404644 has 24 divisors (see below), whose sum is σ = 125261920. Its totient is φ = 17708544.

The previous prime is 53404627. The next prime is 53404657. The reversal of 53404644 is 44640435.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9214 + ... + 13845.

Almost surely, 2^53404644 is an apocalyptic number.

It is an amenable number.

53404644 is an abundant number, since it is smaller than the sum of its proper divisors (71857276).

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

53404644 is a wasteful number, since it uses less digits than its factorization.

53404644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23259 (or 23257 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 53404644 is about 7307.8481100800. The cubic root of 53404644 is about 376.5821016030.

The spelling of 53404644 in words is "fifty-three million, four hundred four thousand, six hundred forty-four".