2563431 has 8 divisors (see below), whose sum is σ = 3680880. Its totient is φ = 1577472.

The previous prime is 2563417. The next prime is 2563433. The reversal of 2563431 is 1343652.

It is a happy number.

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

It is not a de Polignac number, because 2563431 - 2⁶ = 2563367 is a prime.

It is a super-2 number, since 2×2563431² = 13142356983522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563433) 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, 32826 + ... + 32903.

It is an arithmetic number, because the mean of its divisors is an integer number (460110).

2^2563431 is an apocalyptic number.

2563431 is a deficient number, since it is larger than the sum of its proper divisors (1117449).

2563431 is a wasteful number, since it uses less digits than its factorization.

2563431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65745.

The product of its digits is 2160, while the sum is 24.

The square root of 2563431 is about 1601.0718284949. The cubic root of 2563431 is about 136.8591622800.

The spelling of 2563431 in words is "two million, five hundred sixty-three thousand, four hundred thirty-one".