56131455111 has 8 divisors (see below), whose sum is σ = 76582450560. Its totient is φ = 36550714872.

The previous prime is 56131455101. The next prime is 56131455137. The reversal of 56131455111 is 11155413165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56131455111 - 2²¹ = 56129357959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56131455101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217563651 + ... + 217563908.

It is an arithmetic number, because the mean of its divisors is an integer number (9572806320).

Almost surely, 2^56131455111 is an apocalyptic number.

56131455111 is a deficient number, since it is larger than the sum of its proper divisors (20450995449).

56131455111 is a wasteful number, since it uses less digits than its factorization.

56131455111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435127605.

The product of its digits is 9000, while the sum is 33.

Adding to 56131455111 its reverse (11155413165), we get a palindrome (67286868276).

The spelling of 56131455111 in words is "fifty-six billion, one hundred thirty-one million, four hundred fifty-five thousand, one hundred eleven".