53711664 has 20 divisors (see below), whose sum is σ = 138755256. Its totient is φ = 17903872.

The previous prime is 53711663. The next prime is 53711677. The reversal of 53711664 is 46611735.

It is not an unprimeable number, because it can be changed into a prime (53711663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559449 + ... + 559544.

Almost surely, 2^53711664 is an apocalyptic number.

It is an amenable number.

53711664 is an abundant number, since it is smaller than the sum of its proper divisors (85043592).

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

53711664 is a wasteful number, since it uses less digits than its factorization.

53711664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119004 (or 1118998 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 53711664 is about 7328.8241894590. The cubic root of 53711664 is about 377.3023721789.

The spelling of 53711664 in words is "fifty-three million, seven hundred eleven thousand, six hundred sixty-four".