55422445 has 16 divisors (see below), whose sum is σ = 72076032. Its totient is φ = 40668480.

The previous prime is 55422443. The next prime is 55422491. The reversal of 55422445 is 54422455.

It is not a de Polignac number, because 55422445 - 2¹ = 55422443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55422443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7980 + ... + 13210.

It is an arithmetic number, because the mean of its divisors is an integer number (4504752).

Almost surely, 2^55422445 is an apocalyptic number.

It is an amenable number.

55422445 is a deficient number, since it is larger than the sum of its proper divisors (16653587).

55422445 is a wasteful number, since it uses less digits than its factorization.

55422445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412.

The product of its digits is 32000, while the sum is 31.

The square root of 55422445 is about 7444.6252424148. The cubic root of 55422445 is about 381.2664233721.

It can be divided in two parts, 55 and 422445, that added together give a square (422500 = 650²).

The spelling of 55422445 in words is "fifty-five million, four hundred twenty-two thousand, four hundred forty-five".