25253099479 has 2 divisors, whose sum is σ = 25253099480. Its totient is φ = 25253099478.

The previous prime is 25253099453. The next prime is 25253099491. The reversal of 25253099479 is 97499035252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25253099479 - 2¹¹ = 25253097431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25253099449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12626549739 + 12626549740.

It is an arithmetic number, because the mean of its divisors is an integer number (12626549740).

Almost surely, 2^25253099479 is an apocalyptic number.

25253099479 is a deficient number, since it is larger than the sum of its proper divisors (1).

25253099479 is an equidigital number, since it uses as much as digits as its factorization.

25253099479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 25253099479 in words is "twenty-five billion, two hundred fifty-three million, ninety-nine thousand, four hundred seventy-nine".