55140226 has 8 divisors (see below), whose sum is σ = 83513664. Its totient is φ = 27302340.

The previous prime is 55140221. The next prime is 55140229. The reversal of 55140226 is 62204155.

55140226 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 55140226.

It is not an unprimeable number, because it can be changed into a prime (55140221) by changing a digit.

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, 133630 + ... + 134041.

It is an arithmetic number, because the mean of its divisors is an integer number (10439208).

Almost surely, 2^55140226 is an apocalyptic number.

55140226 is a deficient number, since it is larger than the sum of its proper divisors (28373438).

55140226 is a wasteful number, since it uses less digits than its factorization.

55140226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267776.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 55140226 is about 7425.6465038406. The cubic root of 55140226 is about 380.6181674387.

The spelling of 55140226 in words is "fifty-five million, one hundred forty thousand, two hundred twenty-six".