2625715261 has 4 divisors (see below), whose sum is σ = 2827693372. Its totient is φ = 2423737152.

The previous prime is 2625715231. The next prime is 2625715289. The reversal of 2625715261 is 1625175262.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1367594361 + 1258120900 = 36981^2 + 35470^2 .

It is a cyclic number.

It is not a de Polignac number, because 2625715261 - 2¹¹ = 2625713213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2625715261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625715231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100989036 + ... + 100989061.

It is an arithmetic number, because the mean of its divisors is an integer number (706923343).

Almost surely, 2^2625715261 is an apocalyptic number.

It is an amenable number.

2625715261 is a deficient number, since it is larger than the sum of its proper divisors (201978111).

2625715261 is a wasteful number, since it uses less digits than its factorization.

2625715261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201978110.

The product of its digits is 50400, while the sum is 37.

The square root of 2625715261 is about 51241.7335869894. The cubic root of 2625715261 is about 1379.5873689308.

The spelling of 2625715261 in words is "two billion, six hundred twenty-five million, seven hundred fifteen thousand, two hundred sixty-one".