65247516 has 18 divisors (see below), whose sum is σ = 164931312. Its totient is φ = 21749160.

The previous prime is 65247499. The next prime is 65247521. The reversal of 65247516 is 61574256.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×65247516³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1812431 = 65247516 / (6 + 5 + 2 + 4 + 7 + 5 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 906180 + ... + 906251.

Almost surely, 2^65247516 is an apocalyptic number.

It is an amenable number.

65247516 is an abundant number, since it is smaller than the sum of its proper divisors (99683796).

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

65247516 is a wasteful number, since it uses less digits than its factorization.

65247516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812441 (or 1812436 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 65247516 is about 8077.5934534984. The cubic root of 65247516 is about 402.5822852999.

The spelling of 65247516 in words is "sixty-five million, two hundred forty-seven thousand, five hundred sixteen".