2156288254 has 8 divisors (see below), whose sum is σ = 3251191680. Its totient is φ = 1072557696.

The previous prime is 2156288227. The next prime is 2156288317. The reversal of 2156288254 is 4528826512.

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 2156288254.

It is a congruent number.

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, 2792734 + ... + 2793505.

It is an arithmetic number, because the mean of its divisors is an integer number (406398960).

Almost surely, 2^2156288254 is an apocalyptic number.

2156288254 is a deficient number, since it is larger than the sum of its proper divisors (1094903426).

2156288254 is a wasteful number, since it uses less digits than its factorization.

2156288254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586434.

The product of its digits is 307200, while the sum is 43.

The square root of 2156288254 is about 46435.8509559155. The cubic root of 2156288254 is about 1291.9199529783.

The spelling of 2156288254 in words is "two billion, one hundred fifty-six million, two hundred eighty-eight thousand, two hundred fifty-four".