56553233 has 16 divisors (see below), whose sum is σ = 63011520. Its totient is φ = 50328000.

The previous prime is 56553229. The next prime is 56553239. The reversal of 56553233 is 33235565.

It is a cyclic number.

It is not a de Polignac number, because 56553233 - 2² = 56553229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56553233.

It is not an unprimeable number, because it can be changed into a prime (56553239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120866 + ... + 121332.

It is an arithmetic number, because the mean of its divisors is an integer number (3938220).

Almost surely, 2^56553233 is an apocalyptic number.

It is an amenable number.

56553233 is a deficient number, since it is larger than the sum of its proper divisors (6458287).

56553233 is a wasteful number, since it uses less digits than its factorization.

56553233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688.

The product of its digits is 40500, while the sum is 32.

The square root of 56553233 is about 7520.1883620026. The cubic root of 56553233 is about 383.8419873065.

Adding to 56553233 its reverse (33235565), we get a palindrome (89788798).

It can be divided in two parts, 565532 and 33, that added together give a palindrome (565565).

The spelling of 56553233 in words is "fifty-six million, five hundred fifty-three thousand, two hundred thirty-three".