25135551767 has 2 divisors, whose sum is σ = 25135551768. Its totient is φ = 25135551766.

The previous prime is 25135551761. The next prime is 25135551803. The reversal of 25135551767 is 76715553152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25135551767 - 2²⁸ = 24867116311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25135551761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567775883 + 12567775884.

It is an arithmetic number, because the mean of its divisors is an integer number (12567775884).

Almost surely, 2^25135551767 is an apocalyptic number.

25135551767 is a deficient number, since it is larger than the sum of its proper divisors (1).

25135551767 is an equidigital number, since it uses as much as digits as its factorization.

25135551767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1102500, while the sum is 47.

The spelling of 25135551767 in words is "twenty-five billion, one hundred thirty-five million, five hundred fifty-one thousand, seven hundred sixty-seven".