2544631 has 2 divisors, whose sum is σ = 2544632. Its totient is φ = 2544630.

The previous prime is 2544629. The next prime is 2544637. The reversal of 2544631 is 1364452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2544631 - 2¹ = 2544629 is a prime.

It is a super-2 number, since 2×2544631² = 12950293852322, which contains 22 as substring.

Together with 2544629, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁹ + 4⁶ + 4⁷ + 6⁶ + 3⁴ + 1 .

It is a junction number, because it is equal to n+sod(n) for n = 2544596 and 2544605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2544637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272315 + 1272316.

It is an arithmetic number, because the mean of its divisors is an integer number (1272316).

2^2544631 is an apocalyptic number.

2544631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2544631 is an equidigital number, since it uses as much as digits as its factorization.

2544631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 25.

The square root of 2544631 is about 1595.1899573405. The cubic root of 2544631 is about 136.5237696042.

The spelling of 2544631 in words is "two million, five hundred forty-four thousand, six hundred thirty-one".