25251678763 has 2 divisors, whose sum is σ = 25251678764. Its totient is φ = 25251678762.

The previous prime is 25251678743. The next prime is 25251678779. The reversal of 25251678763 is 36787615252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25251678763 - 2¹⁷ = 25251547691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25251678763.

It is not a weakly prime, because it can be changed into another prime (25251678713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12625839381 + 12625839382.

It is an arithmetic number, because the mean of its divisors is an integer number (12625839382).

Almost surely, 2^25251678763 is an apocalyptic number.

25251678763 is a deficient number, since it is larger than the sum of its proper divisors (1).

25251678763 is an equidigital number, since it uses as much as digits as its factorization.

25251678763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4233600, while the sum is 52.

The spelling of 25251678763 in words is "twenty-five billion, two hundred fifty-one million, six hundred seventy-eight thousand, seven hundred sixty-three".