65576540 has 24 divisors (see below), whose sum is σ = 142460640. Its totient is φ = 25325888.

The previous prime is 65576521. The next prime is 65576561. The reversal of 65576540 is 4567556.

It is a junction number, because it is equal to n+sod(n) for n = 65576494 and 65576503.

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, 55952 + ... + 57111.

It is an arithmetic number, because the mean of its divisors is an integer number (5935860).

Almost surely, 2^65576540 is an apocalyptic number.

It is an amenable number.

65576540 is an abundant number, since it is smaller than the sum of its proper divisors (76884100).

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

65576540 is a wasteful number, since it uses less digits than its factorization.

65576540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113101 (or 113099 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 65576540 is about 8097.9343045001. The cubic root of 65576540 is about 403.2578522929.

The spelling of 65576540 in words is "sixty-five million, five hundred seventy-six thousand, five hundred forty".