2551436 has 12 divisors (see below), whose sum is σ = 4659312. Its totient is φ = 1220208.

The previous prime is 2551433. The next prime is 2551441. The reversal of 2551436 is 6341552.

It is a d-powerful number, because it can be written as 2⁵ + 5 + 5⁹ + 1 + 4⁸ + 3¹² + 6⁴ .

It is not an unprimeable number, because it can be changed into a prime (2551433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13775 + ... + 13958.

It is an arithmetic number, because the mean of its divisors is an integer number (388276).

2^2551436 is an apocalyptic number.

It is an amenable number.

2551436 is a deficient number, since it is larger than the sum of its proper divisors (2107876).

2551436 is a wasteful number, since it uses less digits than its factorization.

2551436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27760 (or 27758 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 2551436 is about 1597.3215080252. The cubic root of 2551436 is about 136.6453612105.

Adding to 2551436 its reverse (6341552), we get a palindrome (8892988).

The spelling of 2551436 in words is "two million, five hundred fifty-one thousand, four hundred thirty-six".