56115533 has 8 divisors (see below), whose sum is σ = 56816448. Its totient is φ = 55417824.

The previous prime is 56115529. The next prime is 56115541. The reversal of 56115533 is 33551165.

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

It is a cyclic number.

It is not a de Polignac number, because 56115533 - 2² = 56115529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56115496 and 56115505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56115583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63110 + ... + 63992.

It is an arithmetic number, because the mean of its divisors is an integer number (7102056).

Almost surely, 2^56115533 is an apocalyptic number.

It is an amenable number.

56115533 is a deficient number, since it is larger than the sum of its proper divisors (700915).

56115533 is a wasteful number, since it uses less digits than its factorization.

56115533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603.

The product of its digits is 6750, while the sum is 29.

The square root of 56115533 is about 7491.0301694760. The cubic root of 56115533 is about 382.8491590149.

Adding to 56115533 its reverse (33551165), we get a palindrome (89666698).

The spelling of 56115533 in words is "fifty-six million, one hundred fifteen thousand, five hundred thirty-three".