25262654149 has 2 divisors, whose sum is σ = 25262654150. Its totient is φ = 25262654148.

The previous prime is 25262654119. The next prime is 25262654159. The reversal of 25262654149 is 94145626252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25187277025 + 75377124 = 158705^2 + 8682^2 .

It is a cyclic number.

It is not a de Polignac number, because 25262654149 - 2¹⁵ = 25262621381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25262654099 and 25262654108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25262654119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12631327074 + 12631327075.

It is an arithmetic number, because the mean of its divisors is an integer number (12631327075).

Almost surely, 2^25262654149 is an apocalyptic number.

It is an amenable number.

25262654149 is a deficient number, since it is larger than the sum of its proper divisors (1).

25262654149 is an equidigital number, since it uses as much as digits as its factorization.

25262654149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 46.

The spelling of 25262654149 in words is "twenty-five billion, two hundred sixty-two million, six hundred fifty-four thousand, one hundred forty-nine".