56621198 has 8 divisors (see below), whose sum is σ = 84974400. Its totient is φ = 28296400.

The previous prime is 56621161. The next prime is 56621207. The reversal of 56621198 is 89112665.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1103 + ... + 10698.

It is an arithmetic number, because the mean of its divisors is an integer number (10621800).

Almost surely, 2^56621198 is an apocalyptic number.

56621198 is a deficient number, since it is larger than the sum of its proper divisors (28353202).

56621198 is a wasteful number, since it uses less digits than its factorization.

56621198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14202.

The product of its digits is 25920, while the sum is 38.

The square root of 56621198 is about 7524.7058414266. The cubic root of 56621198 is about 383.9956913217.

The spelling of 56621198 in words is "fifty-six million, six hundred twenty-one thousand, one hundred ninety-eight".