55310622 has 16 divisors (see below), whose sum is σ = 117128592. Its totient is φ = 17352320.

The previous prime is 55310621. The next prime is 55310663. The reversal of 55310622 is 22601355.

It is a junction number, because it is equal to n+sod(n) for n = 55310592 and 55310601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55310621) 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, 271029 + ... + 271232.

It is an arithmetic number, because the mean of its divisors is an integer number (7320537).

Almost surely, 2^55310622 is an apocalyptic number.

55310622 is an abundant number, since it is smaller than the sum of its proper divisors (61817970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55310622 is a wasteful number, since it uses less digits than its factorization.

55310622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542283.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 55310622 is about 7437.1111326912. Note that the first 4 decimals coincide. The cubic root of 55310622 is about 381.0098302105.

Adding to 55310622 its reverse (22601355), we get a palindrome (77911977).

It can be divided in two parts, 553 and 10622, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 55310622 in words is "fifty-five million, three hundred ten thousand, six hundred twenty-two".