2500667647 has 2 divisors, whose sum is σ = 2500667648. Its totient is φ = 2500667646.

The previous prime is 2500667629. The next prime is 2500667671. The reversal of 2500667647 is 7467660052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2500667647 - 2¹⁵ = 2500634879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2500667047) 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, 1250333823 + 1250333824.

It is an arithmetic number, because the mean of its divisors is an integer number (1250333824).

Almost surely, 2^2500667647 is an apocalyptic number.

2500667647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500667647 is an equidigital number, since it uses as much as digits as its factorization.

2500667647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 2500667647 is about 50006.6760243070. The cubic root of 2500667647 is about 1357.3296157291.

The spelling of 2500667647 in words is "two billion, five hundred million, six hundred sixty-seven thousand, six hundred forty-seven".