56406233 has 8 divisors (see below), whose sum is σ = 60812808. Its totient is φ = 52009344.

The previous prime is 56406209. The next prime is 56406253. The reversal of 56406233 is 33260465.

It can be written as a sum of positive squares in 4 ways, for example, as 635209 + 55771024 = 797^2 + 7468^2 .

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 56406233 - 2⁶ = 56406169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56406196 and 56406205.

It is not an unprimeable number, because it can be changed into a prime (56406253) 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, 13691 + ... + 17327.

It is an arithmetic number, because the mean of its divisors is an integer number (7601601).

Almost surely, 2^56406233 is an apocalyptic number.

It is an amenable number.

56406233 is a deficient number, since it is larger than the sum of its proper divisors (4406575).

56406233 is a wasteful number, since it uses less digits than its factorization.

56406233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 56406233 is about 7510.4083111373. The cubic root of 56406233 is about 383.5091225668.

Adding to 56406233 its reverse (33260465), we get a palindrome (89666698).

The spelling of 56406233 in words is "fifty-six million, four hundred six thousand, two hundred thirty-three".