2159554382 has 4 divisors (see below), whose sum is σ = 3239331576. Its totient is φ = 1079777190.

The previous prime is 2159554381. The next prime is 2159554451. The reversal of 2159554382 is 2834559512.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159554381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539888594 + ... + 539888597.

It is an arithmetic number, because the mean of its divisors is an integer number (809832894).

Almost surely, 2^2159554382 is an apocalyptic number.

2159554382 is a deficient number, since it is larger than the sum of its proper divisors (1079777194).

2159554382 is a wasteful number, since it uses less digits than its factorization.

2159554382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079777193.

The product of its digits is 432000, while the sum is 44.

The square root of 2159554382 is about 46471.0058208341. The cubic root of 2159554382 is about 1292.5719139352.

The spelling of 2159554382 in words is "two billion, one hundred fifty-nine million, five hundred fifty-four thousand, three hundred eighty-two".