56730189 has 4 divisors (see below), whose sum is σ = 75640256. Its totient is φ = 37820124.

The previous prime is 56730187. The next prime is 56730197. The reversal of 56730189 is 98103765.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56730189 - 2¹ = 56730187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56730187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9455029 + ... + 9455034.

It is an arithmetic number, because the mean of its divisors is an integer number (18910064).

Almost surely, 2^56730189 is an apocalyptic number.

It is an amenable number.

56730189 is a deficient number, since it is larger than the sum of its proper divisors (18910067).

56730189 is a wasteful number, since it uses less digits than its factorization.

56730189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18910066.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 56730189 is about 7531.9445696314. The cubic root of 56730189 is about 384.2419197701.

The spelling of 56730189 in words is "fifty-six million, seven hundred thirty thousand, one hundred eighty-nine".