25555344984031 has 2 divisors, whose sum is σ = 25555344984032. Its totient is φ = 25555344984030.

The previous prime is 25555344984023. The next prime is 25555344984089. The reversal of 25555344984031 is 13048944355552.

It is an a-pointer prime, because the next prime (25555344984089) can be obtained adding 25555344984031 to its sum of digits (58).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25555344984031 - 2³ = 25555344984023 is a prime.

It is a super-2 number, since 2×25555344984031² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25555344984431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777672492015 + 12777672492016.

It is an arithmetic number, because the mean of its divisors is an integer number (12777672492016).

Almost surely, 2^{25555344984031} is an apocalyptic number.

25555344984031 is a deficient number, since it is larger than the sum of its proper divisors (1).

25555344984031 is an equidigital number, since it uses as much as digits as its factorization.

25555344984031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840000, while the sum is 58.

The spelling of 25555344984031 in words is "twenty-five trillion, five hundred fifty-five billion, three hundred forty-four million, nine hundred eighty-four thousand, thirty-one".