55362321 has 24 divisors (see below), whose sum is σ = 92686464. Its totient is φ = 31187520.

The previous prime is 55362283. The next prime is 55362343. The reversal of 55362321 is 12326355.

It is not a de Polignac number, because 55362321 - 2¹³ = 55354129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55362521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1716 + ... + 10661.

It is an arithmetic number, because the mean of its divisors is an integer number (3861936).

Almost surely, 2^55362321 is an apocalyptic number.

It is an amenable number.

55362321 is a deficient number, since it is larger than the sum of its proper divisors (37324143).

55362321 is a wasteful number, since it uses less digits than its factorization.

55362321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12461 (or 12458 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 55362321 is about 7440.5860656268. The cubic root of 55362321 is about 381.1285035772.

Adding to 55362321 its reverse (12326355), we get a palindrome (67688676).

The spelling of 55362321 in words is "fifty-five million, three hundred sixty-two thousand, three hundred twenty-one".