55122310 has 8 divisors (see below), whose sum is σ = 99220176. Its totient is φ = 22048920.

The previous prime is 55122293. The next prime is 55122317. The reversal of 55122310 is 1322155.

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

It is a super-2 number, since 2×55122310² = 6076938119472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55122317) 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 3 ways as a sum of consecutive naturals, for example, 2756106 + ... + 2756125.

It is an arithmetic number, because the mean of its divisors is an integer number (12402522).

Almost surely, 2^55122310 is an apocalyptic number.

55122310 is a deficient number, since it is larger than the sum of its proper divisors (44097866).

55122310 is a wasteful number, since it uses less digits than its factorization.

55122310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512238.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 55122310 is about 7424.4400462257. The cubic root of 55122310 is about 380.5769398615.

Adding to 55122310 its reverse (1322155), we get a palindrome (56444465).

The spelling of 55122310 in words is "fifty-five million, one hundred twenty-two thousand, three hundred ten".