2654505261 has 12 divisors (see below), whose sum is σ = 3868218588. Its totient is φ = 1754008704.

The previous prime is 2654505241. The next prime is 2654505263. The reversal of 2654505261 is 1625054562.

2654505261 is a `hidden beast` number, since 2 + 6 + 545 + 0 + 52 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 615982761 + 2038522500 = 24819^2 + 45150^2 .

It is not a de Polignac number, because 2654505261 - 2⁵ = 2654505229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2654505263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1304050 + ... + 1306083.

It is an arithmetic number, because the mean of its divisors is an integer number (322351549).

Almost surely, 2^2654505261 is an apocalyptic number.

It is an amenable number.

2654505261 is a deficient number, since it is larger than the sum of its proper divisors (1213713327).

2654505261 is a wasteful number, since it uses less digits than its factorization.

2654505261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610252 (or 2610249 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 2654505261 is about 51521.8910852465. The cubic root of 2654505261 is about 1384.6112739999.

The spelling of 2654505261 in words is "two billion, six hundred fifty-four million, five hundred five thousand, two hundred sixty-one".