25263890129 has 16 divisors (see below), whose sum is σ = 25897734720. Its totient is φ = 24638845440.

The previous prime is 25263890053. The next prime is 25263890149. The reversal of 25263890129 is 92109836252.

It is a cyclic number.

It is not a de Polignac number, because 25263890129 - 2¹² = 25263886033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25263890149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2789849 + ... + 2798889.

It is an arithmetic number, because the mean of its divisors is an integer number (1618608420).

Almost surely, 2^25263890129 is an apocalyptic number.

It is an amenable number.

25263890129 is a deficient number, since it is larger than the sum of its proper divisors (633844591).

25263890129 is a wasteful number, since it uses less digits than its factorization.

25263890129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 25263890129 in words is "twenty-five billion, two hundred sixty-three million, eight hundred ninety thousand, one hundred twenty-nine".