56535244253591 has 2 divisors, whose sum is σ = 56535244253592. Its totient is φ = 56535244253590.

The previous prime is 56535244253491. The next prime is 56535244253599. The reversal of 56535244253591 is 19535244253565.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56535244253591 - 2³⁴ = 56518064384407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56535244253591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56535244253599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28267622126795 + 28267622126796.

It is an arithmetic number, because the mean of its divisors is an integer number (28267622126796).

Almost surely, 2^{56535244253591} is an apocalyptic number.

56535244253591 is a deficient number, since it is larger than the sum of its proper divisors (1).

56535244253591 is an equidigital number, since it uses as much as digits as its factorization.

56535244253591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200000, while the sum is 59.

The spelling of 56535244253591 in words is "fifty-six trillion, five hundred thirty-five billion, two hundred forty-four million, two hundred fifty-three thousand, five hundred ninety-one".