55321626 has 16 divisors (see below), whose sum is σ = 110880000. Its totient is φ = 18401088.

The previous prime is 55321579. The next prime is 55321627. The reversal of 55321626 is 62612355.

It is a junction number, because it is equal to n+sod(n) for n = 55321593 and 55321602.

It is not an unprimeable number, because it can be changed into a prime (55321627) 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, 6751 + ... + 12498.

It is an arithmetic number, because the mean of its divisors is an integer number (6930000).

Almost surely, 2^55321626 is an apocalyptic number.

55321626 is an abundant number, since it is smaller than the sum of its proper divisors (55558374).

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

55321626 is a wasteful number, since it uses less digits than its factorization.

55321626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19733.

The product of its digits is 10800, while the sum is 30.

The square root of 55321626 is about 7437.8508992854. The cubic root of 55321626 is about 381.0350957262.

The spelling of 55321626 in words is "fifty-five million, three hundred twenty-one thousand, six hundred twenty-six".