65275272 has 24 divisors (see below), whose sum is σ = 176787390. Its totient is φ = 21758400.

The previous prime is 65275229. The next prime is 65275283. The reversal of 65275272 is 27257256.

It can be written as a sum of positive squares in only one way, i.e., 62631396 + 2643876 = 7914^2 + 1626^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×65275272² = 8521722269347968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 453229 + ... + 453372.

Almost surely, 2^65275272 is an apocalyptic number.

It is an amenable number.

65275272 is an abundant number, since it is smaller than the sum of its proper divisors (111512118).

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

65275272 is a wasteful number, since it uses less digits than its factorization.

65275272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906613 (or 906606 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 65275272 is about 8079.3113567927. The cubic root of 65275272 is about 402.6393627720.

The spelling of 65275272 in words is "sixty-five million, two hundred seventy-five thousand, two hundred seventy-two".