2501216 has 12 divisors (see below), whose sum is σ = 4924332. Its totient is φ = 1250592.

The previous prime is 2501201. The next prime is 2501243. The reversal of 2501216 is 6121052.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2501194 and 2501203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39050 + ... + 39113.

It is an arithmetic number, because the mean of its divisors is an integer number (410361).

2^2501216 is an apocalyptic number.

It is an amenable number.

2501216 is a deficient number, since it is larger than the sum of its proper divisors (2423116).

2501216 is an equidigital number, since it uses as much as digits as its factorization.

2501216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78173 (or 78165 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2501216 is about 1581.5233162998. The cubic root of 2501216 is about 135.7428821418.

Adding to 2501216 its reverse (6121052), we get a palindrome (8622268).

The spelling of 2501216 in words is "two million, five hundred one thousand, two hundred sixteen".