56198155 has 8 divisors (see below), whose sum is σ = 72625392. Its totient is φ = 41500128.

The previous prime is 56198099. The next prime is 56198159. The reversal of 56198155 is 55189165.

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 56198155 - 2¹³ = 56189963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56198159) 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, 432229 + ... + 432358.

It is an arithmetic number, because the mean of its divisors is an integer number (9078174).

Almost surely, 2^56198155 is an apocalyptic number.

56198155 is a deficient number, since it is larger than the sum of its proper divisors (16427237).

56198155 is a wasteful number, since it uses less digits than its factorization.

56198155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864605.

The product of its digits is 54000, while the sum is 40.

The square root of 56198155 is about 7496.5428698834. The cubic root of 56198155 is about 383.0369635307.

The spelling of 56198155 in words is "fifty-six million, one hundred ninety-eight thousand, one hundred fifty-five".