2551016 has 32 divisors (see below), whose sum is σ = 5426400. Its totient is φ = 1114560.

The previous prime is 2551013. The next prime is 2551027. The reversal of 2551016 is 6101552.

It is not an unprimeable number, because it can be changed into a prime (2551013) 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, 1331 + ... + 2621.

It is an arithmetic number, because the mean of its divisors is an integer number (169575).

2^2551016 is an apocalyptic number.

2551016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2551016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2713200).

2551016 is an abundant number, since it is smaller than the sum of its proper divisors (2875384).

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

2551016 is a wasteful number, since it uses less digits than its factorization.

2551016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2551016 is about 1597.1900325259. The cubic root of 2551016 is about 136.6378629231.

Adding to 2551016 its reverse (6101552), we get a palindrome (8652568).

The spelling of 2551016 in words is "two million, five hundred fifty-one thousand, sixteen".