25158450029 has 2 divisors, whose sum is σ = 25158450030. Its totient is φ = 25158450028.

The previous prime is 25158449999. The next prime is 25158450049. The reversal of 25158450029 is 92005485152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18898000900 + 6260449129 = 137470^2 + 79123^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25158450029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25158450049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12579225014 + 12579225015.

It is an arithmetic number, because the mean of its divisors is an integer number (12579225015).

Almost surely, 2^25158450029 is an apocalyptic number.

It is an amenable number.

25158450029 is a deficient number, since it is larger than the sum of its proper divisors (1).

25158450029 is an equidigital number, since it uses as much as digits as its factorization.

25158450029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 41.

The spelling of 25158450029 in words is "twenty-five billion, one hundred fifty-eight million, four hundred fifty thousand, twenty-nine".