53893644 has 48 divisors (see below), whose sum is σ = 144092928. Its totient is φ = 15357888.

The previous prime is 53893607. The next prime is 53893657. The reversal of 53893644 is 44639835.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 53893596 and 53893605.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48762 + ... + 49854.

It is an arithmetic number, because the mean of its divisors is an integer number (3001936).

Almost surely, 2^53893644 is an apocalyptic number.

It is an amenable number.

53893644 is an abundant number, since it is smaller than the sum of its proper divisors (90199284).

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

53893644 is a wasteful number, since it uses less digits than its factorization.

53893644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694 (or 1692 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The square root of 53893644 is about 7341.2290524135. The cubic root of 53893644 is about 377.7280034256.

The spelling of 53893644 in words is "fifty-three million, eight hundred ninety-three thousand, six hundred forty-four".