253604656523 has 2 divisors, whose sum is σ = 253604656524. Its totient is φ = 253604656522.

The previous prime is 253604656477. The next prime is 253604656567. The reversal of 253604656523 is 325656406352.

253604656523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253604656523 is a prime.

It is not a weakly prime, because it can be changed into another prime (253604656583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126802328261 + 126802328262.

It is an arithmetic number, because the mean of its divisors is an integer number (126802328262).

Almost surely, 2^253604656523 is an apocalyptic number.

253604656523 is a deficient number, since it is larger than the sum of its proper divisors (1).

253604656523 is an equidigital number, since it uses as much as digits as its factorization.

253604656523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888000, while the sum is 47.

The spelling of 253604656523 in words is "two hundred fifty-three billion, six hundred four million, six hundred fifty-six thousand, five hundred twenty-three".