55395522 has 64 divisors (see below), whose sum is σ = 151522560. Its totient is φ = 14608512.

The previous prime is 55395521. The next prime is 55395541. The reversal of 55395522 is 22559355.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55395521) 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 31 ways as a sum of consecutive naturals, for example, 723 + ... + 10550.

It is an arithmetic number, because the mean of its divisors is an integer number (2367540).

Almost surely, 2^55395522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55395522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75761280).

55395522 is an abundant number, since it is smaller than the sum of its proper divisors (96127038).

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

55395522 is a wasteful number, since it uses less digits than its factorization.

55395522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11304 (or 11298 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The square root of 55395522 is about 7442.8168054843. The cubic root of 55395522 is about 381.2046764360.

The spelling of 55395522 in words is "fifty-five million, three hundred ninety-five thousand, five hundred twenty-two".