53428668 has 24 divisors (see below), whose sum is σ = 125029968. Its totient is φ = 17757696.

The previous prime is 53428651. The next prime is 53428673. The reversal of 53428668 is 86682435.

It is a congruent number.

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, 2071 + ... + 10542.

It is an arithmetic number, because the mean of its divisors is an integer number (5209582).

Almost surely, 2^53428668 is an apocalyptic number.

It is an amenable number.

53428668 is an abundant number, since it is smaller than the sum of its proper divisors (71601300).

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

53428668 is a wasteful number, since it uses less digits than its factorization.

53428668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12973 (or 12971 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 53428668 is about 7309.4916375901. The cubic root of 53428668 is about 376.6385614379.

The spelling of 53428668 in words is "fifty-three million, four hundred twenty-eight thousand, six hundred sixty-eight".