2551131 has 24 divisors (see below), whose sum is σ = 4086576. Its totient is φ = 1520640.

The previous prime is 2551127. The next prime is 2551169. The reversal of 2551131 is 1311552.

It is not a de Polignac number, because 2551131 - 2² = 2551127 is a prime.

It is a super-2 number, since 2×2551131² = 13016538758322, which contains 22 as substring.

2551131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2551531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7051 + ... + 7403.

It is an arithmetic number, because the mean of its divisors is an integer number (170274).

2^2551131 is an apocalyptic number.

2551131 is a deficient number, since it is larger than the sum of its proper divisors (1535445).

2551131 is a wasteful number, since it uses less digits than its factorization.

2551131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 440 counting only the distinct ones).

The product of its digits is 150, while the sum is 18.

The square root of 2551131 is about 1597.2260328457. The cubic root of 2551131 is about 136.6399161074.

Adding to 2551131 its reverse (1311552), we get a palindrome (3862683).

The spelling of 2551131 in words is "two million, five hundred fifty-one thousand, one hundred thirty-one".