65504428 has 12 divisors (see below), whose sum is σ = 125053992. Its totient is φ = 29774720.

The previous prime is 65504407. The next prime is 65504477. The reversal of 65504428 is 82440556.

It is a junction number, because it is equal to n+sod(n) for n = 65504393 and 65504402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744325 + ... + 744412.

It is an arithmetic number, because the mean of its divisors is an integer number (10421166).

Almost surely, 2^65504428 is an apocalyptic number.

It is an amenable number.

65504428 is a deficient number, since it is larger than the sum of its proper divisors (59549564).

65504428 is a wasteful number, since it uses less digits than its factorization.

65504428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488752 (or 1488750 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 65504428 is about 8093.4805862497. The cubic root of 65504428 is about 403.1099823582.

The spelling of 65504428 in words is "sixty-five million, five hundred four thousand, four hundred twenty-eight".