2855632021 has 8 divisors (see below), whose sum is σ = 3187682784. Its totient is φ = 2535655920.

The previous prime is 2855632019. The next prime is 2855632027. The reversal of 2855632021 is 1202365582.

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

It is a cyclic number.

It is not a de Polignac number, because 2855632021 - 2¹ = 2855632019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855632027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3018166 + ... + 3019111.

It is an arithmetic number, because the mean of its divisors is an integer number (398460348).

Almost surely, 2^2855632021 is an apocalyptic number.

It is an amenable number.

2855632021 is a deficient number, since it is larger than the sum of its proper divisors (332050763).

2855632021 is a wasteful number, since it uses less digits than its factorization.

2855632021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6037331.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 2855632021 is about 53438.1139356546. The cubic root of 2855632021 is about 1418.7332518714.

The spelling of 2855632021 in words is "two billion, eight hundred fifty-five million, six hundred thirty-two thousand, twenty-one".