2551416 has 32 divisors (see below), whose sum is σ = 7290240. Its totient is φ = 728928.

The previous prime is 2551403. The next prime is 2551421. The reversal of 2551416 is 6141552.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7426 + ... + 7761.

It is an arithmetic number, because the mean of its divisors is an integer number (227820).

2^2551416 is an apocalyptic number.

It is an amenable number.

2551416 is an abundant number, since it is smaller than the sum of its proper divisors (4738824).

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

2551416 is a wasteful number, since it uses less digits than its factorization.

2551416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15203 (or 15199 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 2551416 is about 1597.3152475326. The cubic root of 2551416 is about 136.6450041678.

Adding to 2551416 its reverse (6141552), we get a palindrome (8692968).

The spelling of 2551416 in words is "two million, five hundred fifty-one thousand, four hundred sixteen".