2551356 has 36 divisors (see below), whose sum is σ = 6510504. Its totient is φ = 842400.

The previous prime is 2551349. The next prime is 2551357. The reversal of 2551356 is 6531552.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551357) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4446 + ... + 4986.

2^2551356 is an apocalyptic number.

It is an amenable number.

2551356 is an abundant number, since it is smaller than the sum of its proper divisors (3959148).

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

2551356 is a wasteful number, since it uses less digits than its factorization.

2551356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 677 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 2551356 is about 1597.2964659073. The cubic root of 2551356 is about 136.6439330287.

The spelling of 2551356 in words is "two million, five hundred fifty-one thousand, three hundred fifty-six".