65481472 has 36 divisors (see below), whose sum is σ = 149383696. Its totient is φ = 28062720.

The previous prime is 65481463. The next prime is 65481491. The reversal of 65481472 is 27418456.

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, 16479 + ... + 20062.

Almost surely, 2^65481472 is an apocalyptic number.

It is an amenable number.

65481472 is an abundant number, since it is smaller than the sum of its proper divisors (83902224).

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

65481472 is an equidigital number, since it uses as much as digits as its factorization.

65481472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36564 (or 36550 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 65481472 is about 8092.0622834973. The cubic root of 65481472 is about 403.0628869468.

The spelling of 65481472 in words is "sixty-five million, four hundred eighty-one thousand, four hundred seventy-two".