55121326 has 8 divisors (see below), whose sum is σ = 89042184. Its totient is φ = 25440600.

The previous prime is 55121273. The next prime is 55121359. The reversal of 55121326 is 62312155.

55121326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55121326.

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 3 ways as a sum of consecutive naturals, for example, 1060000 + ... + 1060051.

It is an arithmetic number, because the mean of its divisors is an integer number (11130273).

Almost surely, 2^55121326 is an apocalyptic number.

55121326 is a deficient number, since it is larger than the sum of its proper divisors (33920858).

55121326 is a wasteful number, since it uses less digits than its factorization.

55121326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120066.

The product of its digits is 1800, while the sum is 25.

The square root of 55121326 is about 7424.3737783062. The cubic root of 55121326 is about 380.5746752616.

The spelling of 55121326 in words is "fifty-five million, one hundred twenty-one thousand, three hundred twenty-six".