25402333953257 has 2 divisors, whose sum is σ = 25402333953258. Its totient is φ = 25402333953256.

The previous prime is 25402333953239. The next prime is 25402333953281. The reversal of 25402333953257 is 75235933320452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25237521500416 + 164812452841 = 5023696^2 + 405971^2 .

It is a cyclic number.

It is not a de Polignac number, because 25402333953257 - 2⁸ = 25402333953001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25402333953199 and 25402333953208.

It is not a weakly prime, because it can be changed into another prime (25402333953287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12701166976628 + 12701166976629.

It is an arithmetic number, because the mean of its divisors is an integer number (12701166976629).

Almost surely, 2^{25402333953257} is an apocalyptic number.

It is an amenable number.

25402333953257 is a deficient number, since it is larger than the sum of its proper divisors (1).

25402333953257 is an equidigital number, since it uses as much as digits as its factorization.

25402333953257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412000, while the sum is 53.

The spelling of 25402333953257 in words is "twenty-five trillion, four hundred two billion, three hundred thirty-three million, nine hundred fifty-three thousand, two hundred fifty-seven".