2155322310 has 32 divisors (see below), whose sum is σ = 5199869952. Its totient is φ = 571741920.

The previous prime is 2155322297. The next prime is 2155322329. The reversal of 2155322310 is 132235512.

It is a happy number.

2155322310 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2155322310² = 9290828519967472200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182344 + ... + 193803.

It is an arithmetic number, because the mean of its divisors is an integer number (162495936).

Almost surely, 2^2155322310 is an apocalyptic number.

2155322310 is an abundant number, since it is smaller than the sum of its proper divisors (3044547642).

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

2155322310 is a wasteful number, since it uses less digits than its factorization.

2155322310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376348.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2155322310 is about 46425.4489477485. The cubic root of 2155322310 is about 1291.7270120587.

Adding to 2155322310 its reverse (132235512), we get a palindrome (2287557822).

The spelling of 2155322310 in words is "two billion, one hundred fifty-five million, three hundred twenty-two thousand, three hundred ten".