56198655 has 12 divisors (see below), whose sum is σ = 97411080. Its totient is φ = 29972592.

The previous prime is 56198641. The next prime is 56198657. The reversal of 56198655 is 55689165.

It is a happy number.

56198655 is a `hidden beast` number, since 561 + 9 + 86 + 5 + 5 = 666.

It is not a de Polignac number, because 56198655 - 2¹¹ = 56196607 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1248859 = 56198655 / (5 + 6 + 1 + 9 + 8 + 6 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 56198655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56198657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 624385 + ... + 624474.

It is an arithmetic number, because the mean of its divisors is an integer number (8117590).

Almost surely, 2^56198655 is an apocalyptic number.

56198655 is a deficient number, since it is larger than the sum of its proper divisors (41212425).

56198655 is a wasteful number, since it uses less digits than its factorization.

56198655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248870 (or 1248867 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The square root of 56198655 is about 7496.5762185147. The cubic root of 56198655 is about 383.0380994987.

The spelling of 56198655 in words is "fifty-six million, one hundred ninety-eight thousand, six hundred fifty-five".