55333430 has 8 divisors (see below), whose sum is σ = 99600192. Its totient is φ = 22133368.

The previous prime is 55333379. The next prime is 55333433. The reversal of 55333430 is 3433355.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55333430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55333433) 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, 2766662 + ... + 2766681.

It is an arithmetic number, because the mean of its divisors is an integer number (12450024).

Almost surely, 2^55333430 is an apocalyptic number.

55333430 is a deficient number, since it is larger than the sum of its proper divisors (44266762).

55333430 is a wasteful number, since it uses less digits than its factorization.

55333430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5533350.

The product of its (nonzero) digits is 8100, while the sum is 26.

The square root of 55333430 is about 7438.6443657430. The cubic root of 55333430 is about 381.0621943416.

Adding to 55333430 its reverse (3433355), we get a palindrome (58766785).

The spelling of 55333430 in words is "fifty-five million, three hundred thirty-three thousand, four hundred thirty".