55122045 has 32 divisors (see below), whose sum is σ = 98824320. Its totient is φ = 26000640.

The previous prime is 55122037. The next prime is 55122077. The reversal of 55122045 is 54022155.

It is a happy number.

55122045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55122045 - 2³ = 55122037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1591 + ... + 10619.

It is an arithmetic number, because the mean of its divisors is an integer number (3088260).

Almost surely, 2^55122045 is an apocalyptic number.

55122045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55122045 is a deficient number, since it is larger than the sum of its proper divisors (43702275).

55122045 is a wasteful number, since it uses less digits than its factorization.

55122045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9085.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55122045 is about 7424.4221997405. The cubic root of 55122045 is about 380.5763299872.

It can be divided in two parts, 5512 and 2045, that added together give a palindrome (7557).

The spelling of 55122045 in words is "fifty-five million, one hundred twenty-two thousand, forty-five".