65279375 has 40 divisors (see below), whose sum is σ = 95669376. Its totient is φ = 43596000.

The previous prime is 65279369. The next prime is 65279387. The reversal of 65279375 is 57397256.

It is not a de Polignac number, because 65279375 - 2²⁰ = 64230799 is a prime.

It is a super-2 number, since 2×65279375² = 8522793600781250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 187952 + ... + 188298.

Almost surely, 2^65279375 is an apocalyptic number.

65279375 is a deficient number, since it is larger than the sum of its proper divisors (30390001).

65279375 is an equidigital number, since it uses as much as digits as its factorization.

65279375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 402 counting only the distinct ones).

The product of its digits is 396900, while the sum is 44.

The square root of 65279375 is about 8079.5652729587. The cubic root of 65279375 is about 402.6477988134.

The spelling of 65279375 in words is "sixty-five million, two hundred seventy-nine thousand, three hundred seventy-five".