25425992029 has 2 divisors, whose sum is σ = 25425992030. Its totient is φ = 25425992028.

The previous prime is 25425991933. The next prime is 25425992069. The reversal of 25425992029 is 92029952452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12911095129 + 12514896900 = 113627^2 + 111870^2 .

It is a cyclic number.

It is not a de Polignac number, because 25425992029 - 2¹⁵ = 25425959261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25425992069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12712996014 + 12712996015.

It is an arithmetic number, because the mean of its divisors is an integer number (12712996015).

Almost surely, 2^25425992029 is an apocalyptic number.

It is an amenable number.

25425992029 is a deficient number, since it is larger than the sum of its proper divisors (1).

25425992029 is an equidigital number, since it uses as much as digits as its factorization.

25425992029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 25425992029 in words is "twenty-five billion, four hundred twenty-five million, nine hundred ninety-two thousand, twenty-nine".