253604656567 has 2 divisors, whose sum is σ = 253604656568. Its totient is φ = 253604656566.

The previous prime is 253604656523. The next prime is 253604656577. The reversal of 253604656567 is 765656406352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253604656567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253604656577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126802328283 + 126802328284.

It is an arithmetic number, because the mean of its divisors is an integer number (126802328284).

Almost surely, 2^253604656567 is an apocalyptic number.

253604656567 is a deficient number, since it is larger than the sum of its proper divisors (1).

253604656567 is an equidigital number, since it uses as much as digits as its factorization.

253604656567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216000, while the sum is 55.

The spelling of 253604656567 in words is "two hundred fifty-three billion, six hundred four million, six hundred fifty-six thousand, five hundred sixty-seven".