2505614261 has 4 divisors (see below), whose sum is σ = 2508312300. Its totient is φ = 2502916224.

The previous prime is 2505614249. The next prime is 2505614269. The reversal of 2505614261 is 1624165052.

2505614261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 739513636 + 1766100625 = 27194^2 + 42025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2505614261 is a prime.

It is a super-2 number, since 2×2505614261² = 12556205649853152242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505614269) 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, 1347626 + ... + 1349483.

It is an arithmetic number, because the mean of its divisors is an integer number (627078075).

Almost surely, 2^2505614261 is an apocalyptic number.

It is an amenable number.

2505614261 is a deficient number, since it is larger than the sum of its proper divisors (2698039).

2505614261 is an equidigital number, since it uses as much as digits as its factorization.

2505614261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698038.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2505614261 is about 50056.1111254160. Note that the first 4 decimals coincide. The cubic root of 2505614261 is about 1358.2240119913.

The spelling of 2505614261 in words is "two billion, five hundred five million, six hundred fourteen thousand, two hundred sixty-one".