2525611687 has 2 divisors, whose sum is σ = 2525611688. Its totient is φ = 2525611686.

The previous prime is 2525611639. The next prime is 2525611723. The reversal of 2525611687 is 7861165252.

2525611687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2525611687 - 2⁷ = 2525611559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2525611607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262805843 + 1262805844.

It is an arithmetic number, because the mean of its divisors is an integer number (1262805844).

Almost surely, 2^2525611687 is an apocalyptic number.

2525611687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525611687 is an equidigital number, since it uses as much as digits as its factorization.

2525611687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 43.

The square root of 2525611687 is about 50255.4642501689. The cubic root of 2525611687 is about 1361.8277916556.

The spelling of 2525611687 in words is "two billion, five hundred twenty-five million, six hundred eleven thousand, six hundred eighty-seven".