55320235 has 8 divisors (see below), whose sum is σ = 66583296. Its totient is φ = 44123520.

The previous prime is 55320233. The next prime is 55320241. The reversal of 55320235 is 53202355.

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

It is not a de Polignac number, because 55320235 - 2¹ = 55320233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55320233) 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, 14731 + ... + 18100.

It is an arithmetic number, because the mean of its divisors is an integer number (8322912).

Almost surely, 2^55320235 is an apocalyptic number.

55320235 is a deficient number, since it is larger than the sum of its proper divisors (11263061).

55320235 is a wasteful number, since it uses less digits than its factorization.

55320235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33173.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 55320235 is about 7437.7573905042. The cubic root of 55320235 is about 381.0319021332.

It can be divided in two parts, 55320 and 235, that added together give a palindrome (55555).

The spelling of 55320235 in words is "fifty-five million, three hundred twenty thousand, two hundred thirty-five".