25227521047 has 2 divisors, whose sum is σ = 25227521048. Its totient is φ = 25227521046.

The previous prime is 25227521029. The next prime is 25227521057. The reversal of 25227521047 is 74012572252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25227521047 - 2²³ = 25219132439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25227520997 and 25227521015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25227521057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12613760523 + 12613760524.

It is an arithmetic number, because the mean of its divisors is an integer number (12613760524).

Almost surely, 2^25227521047 is an apocalyptic number.

25227521047 is a deficient number, since it is larger than the sum of its proper divisors (1).

25227521047 is an equidigital number, since it uses as much as digits as its factorization.

25227521047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78400, while the sum is 37.

The spelling of 25227521047 in words is "twenty-five billion, two hundred twenty-seven million, five hundred twenty-one thousand, forty-seven".