53657144 has 8 divisors (see below), whose sum is σ = 100607160. Its totient is φ = 26828568.

The previous prime is 53657113. The next prime is 53657167. The reversal of 53657144 is 44175635.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3353564 + ... + 3353579.

It is an arithmetic number, because the mean of its divisors is an integer number (12575895).

Almost surely, 2^53657144 is an apocalyptic number.

It is an amenable number.

53657144 is a deficient number, since it is larger than the sum of its proper divisors (46950016).

53657144 is a wasteful number, since it uses less digits than its factorization.

53657144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6707149 (or 6707145 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 53657144 is about 7325.1036852730. The cubic root of 53657144 is about 377.1746687605.

The spelling of 53657144 in words is "fifty-three million, six hundred fifty-seven thousand, one hundred forty-four".