56111266340587 has 4 divisors (see below), whose sum is σ = 56111281369560. Its totient is φ = 56111251311616.

The previous prime is 56111266340531. The next prime is 56111266340593. The reversal of 56111266340587 is 78504366211165.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56111266340587 - 2²³ = 56111257951979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56111266340287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861964 + ... + 10973302.

It is an arithmetic number, because the mean of its divisors is an integer number (14027820342390).

Almost surely, 2^{56111266340587} is an apocalyptic number.

56111266340587 is a deficient number, since it is larger than the sum of its proper divisors (15028973).

56111266340587 is an equidigital number, since it uses as much as digits as its factorization.

56111266340587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15028972.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 56111266340587 in words is "fifty-six trillion, one hundred eleven billion, two hundred sixty-six million, three hundred forty thousand, five hundred eighty-seven".