56223403 has 8 divisors (see below), whose sum is σ = 60915888. Its totient is φ = 51684864.

The previous prime is 56223397. The next prime is 56223439. The reversal of 56223403 is 30432265.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 56223403 - 2⁵ = 56223371 is a prime.

It is a super-2 number, since 2×56223403² = 6322142089800818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56223473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37726 + ... + 39187.

It is an arithmetic number, because the mean of its divisors is an integer number (7614486).

Almost surely, 2^56223403 is an apocalyptic number.

56223403 is a deficient number, since it is larger than the sum of its proper divisors (4692485).

56223403 is a wasteful number, since it uses less digits than its factorization.

56223403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76973.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 56223403 is about 7498.2266570170. The cubic root of 56223403 is about 383.0943169518.

Adding to 56223403 its reverse (30432265), we get a palindrome (86655668).

It can be divided in two parts, 5622 and 3403, that added together give a square (9025 = 95²).

The spelling of 56223403 in words is "fifty-six million, two hundred twenty-three thousand, four hundred three".