25677356293 has 2 divisors, whose sum is σ = 25677356294. Its totient is φ = 25677356292.

The previous prime is 25677356251. The next prime is 25677356297. The reversal of 25677356293 is 39265377652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25364703169 + 312653124 = 159263^2 + 17682^2 .

It is a cyclic number.

It is not a de Polignac number, because 25677356293 - 2¹³ = 25677348101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25677356297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12838678146 + 12838678147.

It is an arithmetic number, because the mean of its divisors is an integer number (12838678147).

Almost surely, 2^25677356293 is an apocalyptic number.

It is an amenable number.

25677356293 is a deficient number, since it is larger than the sum of its proper divisors (1).

25677356293 is an equidigital number, since it uses as much as digits as its factorization.

25677356293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14288400, while the sum is 55.

The spelling of 25677356293 in words is "twenty-five billion, six hundred seventy-seven million, three hundred fifty-six thousand, two hundred ninety-three".