56530203 has 4 divisors (see below), whose sum is σ = 75373608. Its totient is φ = 37686800.

The previous prime is 56530189. The next prime is 56530217. The reversal of 56530203 is 30203565.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (56530189) and next prime (56530217).

It is a cyclic number.

It is not a de Polignac number, because 56530203 - 2⁹ = 56529691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56530273) 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, 9421698 + ... + 9421703.

It is an arithmetic number, because the mean of its divisors is an integer number (18843402).

Almost surely, 2^56530203 is an apocalyptic number.

56530203 is a deficient number, since it is larger than the sum of its proper divisors (18843405).

56530203 is a wasteful number, since it uses less digits than its factorization.

56530203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18843404.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 56530203 is about 7518.6569944372. The cubic root of 56530203 is about 383.7898766330.

Adding to 56530203 its reverse (30203565), we get a palindrome (86733768).

The spelling of 56530203 in words is "fifty-six million, five hundred thirty thousand, two hundred three".