55232313 has 8 divisors (see below), whose sum is σ = 73781376. Its totient is φ = 36752400.

The previous prime is 55232291. The next prime is 55232323. The reversal of 55232313 is 31323255.

It is a happy number.

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

It is not a de Polignac number, because 55232313 - 2¹³ = 55224121 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (55232323) 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, 15393 + ... + 18638.

It is an arithmetic number, because the mean of its divisors is an integer number (9222672).

Almost surely, 2^55232313 is an apocalyptic number.

It is an amenable number.

55232313 is a deficient number, since it is larger than the sum of its proper divisors (18549063).

55232313 is a wasteful number, since it uses less digits than its factorization.

55232313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34575.

The product of its digits is 2700, while the sum is 24.

The square root of 55232313 is about 7431.8445220551. The cubic root of 55232313 is about 380.8299335368.

Adding to 55232313 its reverse (31323255), we get a palindrome (86555568).

The spelling of 55232313 in words is "fifty-five million, two hundred thirty-two thousand, three hundred thirteen".