25455715031 has 2 divisors, whose sum is σ = 25455715032. Its totient is φ = 25455715030.

The previous prime is 25455715013. The next prime is 25455715049. The reversal of 25455715031 is 13051755452.

Together with previous prime (25455715013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (25455715013) and next prime (25455715049).

It is a cyclic number.

It is not a de Polignac number, because 25455715031 - 2⁶ = 25455714967 is a prime.

It is a super-2 number, since 2×25455715031² (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 (25455715001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12727857515 + 12727857516.

It is an arithmetic number, because the mean of its divisors is an integer number (12727857516).

Almost surely, 2^25455715031 is an apocalyptic number.

25455715031 is a deficient number, since it is larger than the sum of its proper divisors (1).

25455715031 is an equidigital number, since it uses as much as digits as its factorization.

25455715031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 25455715031 in words is "twenty-five billion, four hundred fifty-five million, seven hundred fifteen thousand, thirty-one".