2155450226 has 8 divisors (see below), whose sum is σ = 3234342144. Its totient is φ = 1077336180.

The previous prime is 2155450211. The next prime is 2155450249. The reversal of 2155450226 is 6220545512.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2155450192 and 2155450201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187490 + ... + 198653.

It is an arithmetic number, because the mean of its divisors is an integer number (404292768).

Almost surely, 2^2155450226 is an apocalyptic number.

2155450226 is a deficient number, since it is larger than the sum of its proper divisors (1078891918).

2155450226 is a wasteful number, since it uses less digits than its factorization.

2155450226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388936.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 2155450226 is about 46426.8265768833. The cubic root of 2155450226 is about 1291.7525657440.

Adding to 2155450226 its reverse (6220545512), we get a palindrome (8375995738).

The spelling of 2155450226 in words is "two billion, one hundred fifty-five million, four hundred fifty thousand, two hundred twenty-six".