65515264 has 18 divisors (see below), whose sum is σ = 130775120. Its totient is φ = 32757504.

The previous prime is 65515223. The next prime is 65515277. The reversal of 65515264 is 46251556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127704 + ... + 128215.

Almost surely, 2^65515264 is an apocalyptic number.

65515264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

65515264 is a deficient number, since it is larger than the sum of its proper divisors (65259856).

65515264 is an equidigital number, since it uses as much as digits as its factorization.

65515264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255935 (or 255921 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 65515264 is about 8094.1499862555. The cubic root of 65515264 is about 403.1322091454.

The spelling of 65515264 in words is "sixty-five million, five hundred fifteen thousand, two hundred sixty-four".