65477285 has 24 divisors (see below), whose sum is σ = 84415176. Its totient is φ = 48742400.

The previous prime is 65477257. The next prime is 65477303. The reversal of 65477285 is 58277456.

It can be written as a sum of positive squares in 12 ways, for example, as 1493284 + 63984001 = 1222^2 + 7999^2 .

It is not a de Polignac number, because 65477285 - 2⁸ = 65477029 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 163085 + ... + 163485.

It is an arithmetic number, because the mean of its divisors is an integer number (3517299).

Almost surely, 2^65477285 is an apocalyptic number.

It is an amenable number.

65477285 is a deficient number, since it is larger than the sum of its proper divisors (18937891).

65477285 is a wasteful number, since it uses less digits than its factorization.

65477285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 536 counting only the distinct ones).

The product of its digits is 470400, while the sum is 44.

The square root of 65477285 is about 8091.8035690444. The cubic root of 65477285 is about 403.0542959147.

The spelling of 65477285 in words is "sixty-five million, four hundred seventy-seven thousand, two hundred eighty-five".