2154502216 has 16 divisors (see below), whose sum is σ = 4040302140. Its totient is φ = 1077088320.

The previous prime is 2154502177. The next prime is 2154502223. The reversal of 2154502216 is 6122054512.

It can be written as a sum of positive squares in 2 ways, for example, as 1849860100 + 304642116 = 43010^2 + 17454^2 .

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, 50346 + ... + 82726.

Almost surely, 2^2154502216 is an apocalyptic number.

It is an amenable number.

2154502216 is a deficient number, since it is larger than the sum of its proper divisors (1885799924).

2154502216 is a wasteful number, since it uses less digits than its factorization.

2154502216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40704 (or 40700 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 2154502216 is about 46416.6157318691. The cubic root of 2154502216 is about 1291.5631584587.

Adding to 2154502216 its reverse (6122054512), we get a palindrome (8276556728).

The spelling of 2154502216 in words is "two billion, one hundred fifty-four million, five hundred two thousand, two hundred sixteen".