56535244253566 has 32 divisors (see below), whose sum is σ = 92908079107200. Its totient is φ = 25641537798240.

The previous prime is 56535244253491. The next prime is 56535244253591. The reversal of 56535244253566 is 66535244253565.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2558136 + ... + 10936843.

It is an arithmetic number, because the mean of its divisors is an integer number (2903377472100).

Almost surely, 2^{56535244253566} is an apocalyptic number.

56535244253566 is a deficient number, since it is larger than the sum of its proper divisors (36372834853634).

56535244253566 is a wasteful number, since it uses less digits than its factorization.

56535244253566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13497784.

The product of its digits is 388800000, while the sum is 61.

Subtracting 56535244253566 from its reverse (66535244253565), we obtain a palindrome (9999999999999).

The spelling of 56535244253566 in words is "fifty-six trillion, five hundred thirty-five billion, two hundred forty-four million, two hundred fifty-three thousand, five hundred sixty-six".