25670055629 has 2 divisors, whose sum is σ = 25670055630. Its totient is φ = 25670055628.

The previous prime is 25670055577. The next prime is 25670055643. The reversal of 25670055629 is 92655007652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25253977225 + 416078404 = 158915^2 + 20398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25670055629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25670055329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12835027814 + 12835027815.

It is an arithmetic number, because the mean of its divisors is an integer number (12835027815).

Almost surely, 2^25670055629 is an apocalyptic number.

It is an amenable number.

25670055629 is a deficient number, since it is larger than the sum of its proper divisors (1).

25670055629 is an equidigital number, since it uses as much as digits as its factorization.

25670055629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 25670055629 in words is "twenty-five billion, six hundred seventy million, fifty-five thousand, six hundred twenty-nine".