23425547591 has 2 divisors, whose sum is σ = 23425547592. Its totient is φ = 23425547590.

The previous prime is 23425547581. The next prime is 23425547597. The reversal of 23425547591 is 19574552432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23425547591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23425547597) 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, 11712773795 + 11712773796.

It is an arithmetic number, because the mean of its divisors is an integer number (11712773796).

Almost surely, 2^23425547591 is an apocalyptic number.

23425547591 is a deficient number, since it is larger than the sum of its proper divisors (1).

23425547591 is an equidigital number, since it uses as much as digits as its factorization.

23425547591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 47.

The spelling of 23425547591 in words is "twenty-three billion, four hundred twenty-five million, five hundred forty-seven thousand, five hundred ninety-one".