25858248029 has 2 divisors, whose sum is σ = 25858248030. Its totient is φ = 25858248028.

The previous prime is 25858248011. The next prime is 25858248071. The reversal of 25858248029 is 92084285852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25858248025 + 4 = 160805^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 25858248029 - 2³² = 21563280733 is a prime.

It is a super-2 number, since 2×25858248029² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25858248079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12929124014 + 12929124015.

It is an arithmetic number, because the mean of its divisors is an integer number (12929124015).

Almost surely, 2^25858248029 is an apocalyptic number.

It is an amenable number.

25858248029 is a deficient number, since it is larger than the sum of its proper divisors (1).

25858248029 is an equidigital number, since it uses as much as digits as its factorization.

25858248029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3686400, while the sum is 53.

The spelling of 25858248029 in words is "twenty-five billion, eight hundred fifty-eight million, two hundred forty-eight thousand, twenty-nine".