25606100431 has 2 divisors, whose sum is σ = 25606100432. Its totient is φ = 25606100430.

The previous prime is 25606100411. The next prime is 25606100437. The reversal of 25606100431 is 13400160652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25606100431 - 2⁹ = 25606099919 is a prime.

It is a super-2 number, since 2×25606100431² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25606100431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25606100437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12803050215 + 12803050216.

It is an arithmetic number, because the mean of its divisors is an integer number (12803050216).

Almost surely, 2^25606100431 is an apocalyptic number.

25606100431 is a deficient number, since it is larger than the sum of its proper divisors (1).

25606100431 is an equidigital number, since it uses as much as digits as its factorization.

25606100431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 25606100431 in words is "twenty-five billion, six hundred six million, one hundred thousand, four hundred thirty-one".