2551431 has 8 divisors (see below), whose sum is σ = 3411184. Its totient is φ = 1696320.

The previous prime is 2551429. The next prime is 2551433. The reversal of 2551431 is 1341552.

It is an interprime number because it is at equal distance from previous prime (2551429) and next prime (2551433).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2551431 - 2¹ = 2551429 is a prime.

It is a super-2 number, since 2×2551431² = 13019600295522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2551398 and 2551407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551433) 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 7 ways as a sum of consecutive naturals, for example, 441 + ... + 2301.

It is an arithmetic number, because the mean of its divisors is an integer number (426398).

2^2551431 is an apocalyptic number.

2551431 is a deficient number, since it is larger than the sum of its proper divisors (859753).

2551431 is a wasteful number, since it uses less digits than its factorization.

2551431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321.

The product of its digits is 600, while the sum is 21.

The square root of 2551431 is about 1597.3199429044. The cubic root of 2551431 is about 136.6452719500.

Adding to 2551431 its reverse (1341552), we get a palindrome (3892983).

The spelling of 2551431 in words is "two million, five hundred fifty-one thousand, four hundred thirty-one".