2525954861 has 2 divisors, whose sum is σ = 2525954862. Its totient is φ = 2525954860.

The previous prime is 2525954831. The next prime is 2525954863. The reversal of 2525954861 is 1684595252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1855455625 + 670499236 = 43075^2 + 25894^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525954861 - 2⁶ = 2525954797 is a prime.

Together with 2525954863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2525954863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262977430 + 1262977431.

It is an arithmetic number, because the mean of its divisors is an integer number (1262977431).

Almost surely, 2^2525954861 is an apocalyptic number.

It is an amenable number.

2525954861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525954861 is an equidigital number, since it uses as much as digits as its factorization.

2525954861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864000, while the sum is 47.

The square root of 2525954861 is about 50258.8784295869. The cubic root of 2525954861 is about 1361.8894694830.

The spelling of 2525954861 in words is "two billion, five hundred twenty-five million, nine hundred fifty-four thousand, eight hundred sixty-one".