25002749999 has 2 divisors, whose sum is σ = 25002750000. Its totient is φ = 25002749998.

The previous prime is 25002749977. The next prime is 25002750041. The reversal of 25002749999 is 99994720052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25002749999 - 2¹⁶ = 25002684463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25002748999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12501374999 + 12501375000.

It is an arithmetic number, because the mean of its divisors is an integer number (12501375000).

Almost surely, 2^25002749999 is an apocalyptic number.

25002749999 is a deficient number, since it is larger than the sum of its proper divisors (1).

25002749999 is an equidigital number, since it uses as much as digits as its factorization.

25002749999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 56.

The spelling of 25002749999 in words is "twenty-five billion, two million, seven hundred forty-nine thousand, nine hundred ninety-nine".