55198326 has 16 divisors (see below), whose sum is σ = 112964544. Its totient is φ = 17971464.

The previous prime is 55198313. The next prime is 55198357. The reversal of 55198326 is 62389155.

It is a super-4 number, since 4×55198326⁴ (a number of 32 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106716 + ... + 107231.

It is an arithmetic number, because the mean of its divisors is an integer number (7060284).

Almost surely, 2^55198326 is an apocalyptic number.

55198326 is an abundant number, since it is smaller than the sum of its proper divisors (57766218).

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

55198326 is a wasteful number, since it uses less digits than its factorization.

55198326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213995.

The product of its digits is 64800, while the sum is 39.

The square root of 55198326 is about 7429.5575911356. The cubic root of 55198326 is about 380.7518034107.

The spelling of 55198326 in words is "fifty-five million, one hundred ninety-eight thousand, three hundred twenty-six".