27225725687 has 2 divisors, whose sum is σ = 27225725688. Its totient is φ = 27225725686.

The previous prime is 27225725663. The next prime is 27225725693. The reversal of 27225725687 is 78652752272.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27225725687 - 2¹⁶ = 27225660151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27225725627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13612862843 + 13612862844.

It is an arithmetic number, because the mean of its divisors is an integer number (13612862844).

Almost surely, 2^27225725687 is an apocalyptic number.

27225725687 is a deficient number, since it is larger than the sum of its proper divisors (1).

27225725687 is an equidigital number, since it uses as much as digits as its factorization.

27225725687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6585600, while the sum is 53.

The spelling of 27225725687 in words is "twenty-seven billion, two hundred twenty-five million, seven hundred twenty-five thousand, six hundred eighty-seven".