55209254 has 16 divisors (see below), whose sum is σ = 85412448. Its totient is φ = 26744832.

The previous prime is 55209227. The next prime is 55209277. The reversal of 55209254 is 45290255.

55209254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55209254.

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 7 ways as a sum of consecutive naturals, for example, 17567 + ... + 20469.

It is an arithmetic number, because the mean of its divisors is an integer number (5338278).

Almost surely, 2^55209254 is an apocalyptic number.

55209254 is a deficient number, since it is larger than the sum of its proper divisors (30203194).

55209254 is a wasteful number, since it uses less digits than its factorization.

55209254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 55209254 is about 7430.2929955689. The cubic root of 55209254 is about 380.7769284550.

The spelling of 55209254 in words is "fifty-five million, two hundred nine thousand, two hundred fifty-four".