65538532 has 24 divisors (see below), whose sum is σ = 116635680. Its totient is φ = 32218560.

The previous prime is 65538527. The next prime is 65538547. The reversal of 65538532 is 23583556.

It is a junction number, because it is equal to n+sod(n) for n = 65538491 and 65538500.

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, 80407 + ... + 81217.

It is an arithmetic number, because the mean of its divisors is an integer number (4859820).

Almost surely, 2^65538532 is an apocalyptic number.

It is an amenable number.

65538532 is a deficient number, since it is larger than the sum of its proper divisors (51097148).

65538532 is a wasteful number, since it uses less digits than its factorization.

65538532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1129 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

The square root of 65538532 is about 8095.5871930330. The cubic root of 65538532 is about 403.1799281523.

The spelling of 65538532 in words is "sixty-five million, five hundred thirty-eight thousand, five hundred thirty-two".