2555216 has 10 divisors (see below), whose sum is σ = 4950762. Its totient is φ = 1277600.

The previous prime is 2555213. The next prime is 2555221. The reversal of 2555216 is 6125552.

It can be written as a sum of positive squares in only one way, i.e., 2190400 + 364816 = 1480^2 + 604^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79835 + ... + 79866.

2^2555216 is an apocalyptic number.

It is an amenable number.

2555216 is a deficient number, since it is larger than the sum of its proper divisors (2395546).

2555216 is a wasteful number, since it uses less digits than its factorization.

2555216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159709 (or 159703 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 2555216 is about 1598.5043009013. The cubic root of 2555216 is about 136.7128087965.

The spelling of 2555216 in words is "two million, five hundred fifty-five thousand, two hundred sixteen".