2512216 has 32 divisors (see below), whose sum is σ = 5444640. Its totient is φ = 1064448.

The previous prime is 2512207. The next prime is 2512217. The reversal of 2512216 is 6122152.

It is a super-2 number, since 2×2512216² = 12622458461312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2512193 and 2512202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6130 + ... + 6526.

It is an arithmetic number, because the mean of its divisors is an integer number (170145).

2^2512216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2512216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2722320).

2512216 is an abundant number, since it is smaller than the sum of its proper divisors (2932424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2512216 is a wasteful number, since it uses less digits than its factorization.

2512216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 519 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 2512216 is about 1584.9971608807. The cubic root of 2512216 is about 135.9415839087.

Adding to 2512216 its reverse (6122152), we get a palindrome (8634368).

The spelling of 2512216 in words is "two million, five hundred twelve thousand, two hundred sixteen".