56001403 has 4 divisors (see below), whose sum is σ = 56314440. Its totient is φ = 55688368.

The previous prime is 56001401. The next prime is 56001431. The reversal of 56001403 is 30410065.

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

It is a cyclic number.

It is not a de Polignac number, because 56001403 - 2¹ = 56001401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56001401) 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, 156250 + ... + 156607.

It is an arithmetic number, because the mean of its divisors is an integer number (14078610).

Almost surely, 2^56001403 is an apocalyptic number.

56001403 is a deficient number, since it is larger than the sum of its proper divisors (313037).

56001403 is a wasteful number, since it uses less digits than its factorization.

56001403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313036.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 56001403 is about 7483.4085148413. The cubic root of 56001403 is about 382.5894315783.

Adding to 56001403 its reverse (30410065), we get a palindrome (86411468).

The spelling of 56001403 in words is "fifty-six million, one thousand, four hundred three".