2504565261 has 24 divisors (see below), whose sum is σ = 4053258144. Its totient is φ = 1476891360.

The previous prime is 2504565247. The next prime is 2504565269. The reversal of 2504565261 is 1625654052.

It is not a de Polignac number, because 2504565261 - 2¹⁵ = 2504532493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2504565269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338211 + ... + 345536.

It is an arithmetic number, because the mean of its divisors is an integer number (168885756).

Almost surely, 2^2504565261 is an apocalyptic number.

It is an amenable number.

2504565261 is a deficient number, since it is larger than the sum of its proper divisors (1548692883).

2504565261 is a wasteful number, since it uses less digits than its factorization.

2504565261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683801 (or 683798 counting only the distinct ones).

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

The square root of 2504565261 is about 50045.6317873998. The cubic root of 2504565261 is about 1358.0344409296.

It can be divided in two parts, 2504 and 565261, that added together give a palindrome (567765).

The spelling of 2504565261 in words is "two billion, five hundred four million, five hundred sixty-five thousand, two hundred sixty-one".