65518925 has 12 divisors (see below), whose sum is σ = 81351936. Its totient is φ = 52345200.

The previous prime is 65518913. The next prime is 65518931. The reversal of 65518925 is 52981556.

It is not a de Polignac number, because 65518925 - 2⁴ = 65518909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25970 + ... + 28380.

It is an arithmetic number, because the mean of its divisors is an integer number (6779328).

Almost surely, 2^65518925 is an apocalyptic number.

It is an amenable number.

65518925 is a deficient number, since it is larger than the sum of its proper divisors (15833011).

65518925 is a wasteful number, since it uses less digits than its factorization.

65518925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508 (or 3503 counting only the distinct ones).

The product of its digits is 108000, while the sum is 41.

The square root of 65518925 is about 8094.3761340822. The cubic root of 65518925 is about 403.1397180292.

The spelling of 65518925 in words is "sixty-five million, five hundred eighteen thousand, nine hundred twenty-five".