25511250319 has 2 divisors, whose sum is σ = 25511250320. Its totient is φ = 25511250318.

The previous prime is 25511250283. The next prime is 25511250371. The reversal of 25511250319 is 91305211552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25511250319 - 2²⁹ = 24974379407 is a prime.

It is a super-2 number, since 2×25511250319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25511250389) 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, 12755625159 + 12755625160.

It is an arithmetic number, because the mean of its divisors is an integer number (12755625160).

Almost surely, 2^25511250319 is an apocalyptic number.

25511250319 is a deficient number, since it is larger than the sum of its proper divisors (1).

25511250319 is an equidigital number, since it uses as much as digits as its factorization.

25511250319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 25511250319 in words is "twenty-five billion, five hundred eleven million, two hundred fifty thousand, three hundred nineteen".