24997725029 has 2 divisors, whose sum is σ = 24997725030. Its totient is φ = 24997725028.

The previous prime is 24997725001. The next prime is 24997725059. The reversal of 24997725029 is 92052779942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24959260225 + 38464804 = 157985^2 + 6202^2 .

It is a cyclic number.

It is not a de Polignac number, because 24997725029 - 2²⁸ = 24729289573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24997725059) 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 as a sum of consecutive naturals, namely, 12498862514 + 12498862515.

It is an arithmetic number, because the mean of its divisors is an integer number (12498862515).

Almost surely, 2^24997725029 is an apocalyptic number.

It is an amenable number.

24997725029 is a deficient number, since it is larger than the sum of its proper divisors (1).

24997725029 is an equidigital number, since it uses as much as digits as its factorization.

24997725029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 24997725029 in words is "twenty-four billion, nine hundred ninety-seven million, seven hundred twenty-five thousand, twenty-nine".