65125428 has 24 divisors (see below), whose sum is σ = 152094432. Its totient is φ = 21689184.

The previous prime is 65125381. The next prime is 65125433. The reversal of 65125428 is 82452156.

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, 19926 + ... + 22962.

It is an arithmetic number, because the mean of its divisors is an integer number (6337268).

Almost surely, 2^65125428 is an apocalyptic number.

It is an amenable number.

65125428 is an abundant number, since it is smaller than the sum of its proper divisors (86969004).

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

65125428 is a wasteful number, since it uses less digits than its factorization.

65125428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831 (or 4829 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 65125428 is about 8070.0327136883. The cubic root of 65125428 is about 402.3310310149.

The spelling of 65125428 in words is "sixty-five million, one hundred twenty-five thousand, four hundred twenty-eight".