25631426753 has 2 divisors, whose sum is σ = 25631426754. Its totient is φ = 25631426752.

The previous prime is 25631426749. The next prime is 25631426827. The reversal of 25631426753 is 35762413652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22810967089 + 2820459664 = 151033^2 + 53108^2 .

It is a cyclic number.

It is not a de Polignac number, because 25631426753 - 2² = 25631426749 is a prime.

It is not a weakly prime, because it can be changed into another prime (25631422753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12815713376 + 12815713377.

It is an arithmetic number, because the mean of its divisors is an integer number (12815713377).

Almost surely, 2^25631426753 is an apocalyptic number.

It is an amenable number.

25631426753 is a deficient number, since it is larger than the sum of its proper divisors (1).

25631426753 is an equidigital number, since it uses as much as digits as its factorization.

25631426753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 44.

The spelling of 25631426753 in words is "twenty-five billion, six hundred thirty-one million, four hundred twenty-six thousand, seven hundred fifty-three".