53489964 has 24 divisors (see below), whose sum is σ = 136156608. Its totient is φ = 16209040.

The previous prime is 53489963. The next prime is 53489993. The reversal of 53489964 is 46998435.

It is a super-2 number, since 2×53489964² = 5722352497442592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53489963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202482 + ... + 202745.

It is an arithmetic number, because the mean of its divisors is an integer number (5673192).

Almost surely, 2^53489964 is an apocalyptic number.

It is an amenable number.

53489964 is an abundant number, since it is smaller than the sum of its proper divisors (82666644).

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

53489964 is a wasteful number, since it uses less digits than its factorization.

53489964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405245 (or 405243 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 53489964 is about 7313.6833401508. The cubic root of 53489964 is about 376.7825391632.

The spelling of 53489964 in words is "fifty-three million, four hundred eighty-nine thousand, nine hundred sixty-four".