2549658265 has 16 divisors (see below), whose sum is σ = 3814554240. Its totient is φ = 1589397120.

The previous prime is 2549658253. The next prime is 2549658269. The reversal of 2549658265 is 5628569452.

It is not a de Polignac number, because 2549658265 - 2⁵ = 2549658233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2549658269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3310860 + ... + 3311629.

It is an arithmetic number, because the mean of its divisors is an integer number (238409640).

Almost surely, 2^2549658265 is an apocalyptic number.

It is an amenable number.

2549658265 is a deficient number, since it is larger than the sum of its proper divisors (1264895975).

2549658265 is a wasteful number, since it uses less digits than its factorization.

2549658265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6622512.

The product of its digits is 5184000, while the sum is 52.

The square root of 2549658265 is about 50494.1408977319. The cubic root of 2549658265 is about 1366.1361755949.

The spelling of 2549658265 in words is "two billion, five hundred forty-nine million, six hundred fifty-eight thousand, two hundred sixty-five".