2155322254 has 16 divisors (see below), whose sum is σ = 3464406288. Its totient is φ = 1002047872.

The previous prime is 2155322251. The next prime is 2155322297. The reversal of 2155322254 is 4522235512.

2155322254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155322251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379057 + ... + 384700.

It is an arithmetic number, because the mean of its divisors is an integer number (216525393).

Almost surely, 2^2155322254 is an apocalyptic number.

2155322254 is a deficient number, since it is larger than the sum of its proper divisors (1309084034).

2155322254 is a wasteful number, since it uses less digits than its factorization.

2155322254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763859.

The product of its digits is 24000, while the sum is 31.

The square root of 2155322254 is about 46425.4483446310. The cubic root of 2155322254 is about 1291.7270008714.

Adding to 2155322254 its reverse (4522235512), we get a palindrome (6677557766).

The spelling of 2155322254 in words is "two billion, one hundred fifty-five million, three hundred twenty-two thousand, two hundred fifty-four".