25158212329 has 2 divisors, whose sum is σ = 25158212330. Its totient is φ = 25158212328.

The previous prime is 25158212323. The next prime is 25158212353. The reversal of 25158212329 is 92321285152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21119355625 + 4038856704 = 145325^2 + 63552^2 .

It is a cyclic number.

It is not a de Polignac number, because 25158212329 - 2⁷ = 25158212201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25158212291 and 25158212300.

It is not a weakly prime, because it can be changed into another prime (25158212323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12579106164 + 12579106165.

It is an arithmetic number, because the mean of its divisors is an integer number (12579106165).

Almost surely, 2^25158212329 is an apocalyptic number.

It is an amenable number.

25158212329 is a deficient number, since it is larger than the sum of its proper divisors (1).

25158212329 is an equidigital number, since it uses as much as digits as its factorization.

25158212329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 40.

The spelling of 25158212329 in words is "twenty-five billion, one hundred fifty-eight million, two hundred twelve thousand, three hundred twenty-nine".