2525025127621 has 2 divisors, whose sum is σ = 2525025127622. Its totient is φ = 2525025127620.

The previous prime is 2525025127619. The next prime is 2525025127657. The reversal of 2525025127621 is 1267215205252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1673168120100 + 851857007521 = 1293510^2 + 922961^2 .

It is a cyclic number.

It is not a de Polignac number, because 2525025127621 - 2¹ = 2525025127619 is a prime.

Together with 2525025127619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2525025427621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262512563810 + 1262512563811.

It is an arithmetic number, because the mean of its divisors is an integer number (1262512563811).

Almost surely, 2^{2525025127621} is an apocalyptic number.

It is an amenable number.

2525025127621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2525025127621 is an equidigital number, since it uses as much as digits as its factorization.

2525025127621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 2525025127621 in words is "two trillion, five hundred twenty-five billion, twenty-five million, one hundred twenty-seven thousand, six hundred twenty-one".