2503931 has 2 divisors, whose sum is σ = 2503932. Its totient is φ = 2503930.

The previous prime is 2503927. The next prime is 2503961. The reversal of 2503931 is 1393052.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2503931 - 2² = 2503927 is a prime.

It is a super-2 number, since 2×2503931² = 12539340905522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2503897 and 2503906.

It is not a weakly prime, because it can be changed into another prime (2503961) 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 as a sum of consecutive naturals, namely, 1251965 + 1251966.

It is an arithmetic number, because the mean of its divisors is an integer number (1251966).

2^2503931 is an apocalyptic number.

2503931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2503931 is an equidigital number, since it uses as much as digits as its factorization.

2503931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 2503931 is about 1582.3814331570. The cubic root of 2503931 is about 135.7919794153.

Adding to 2503931 its reverse (1393052), we get a palindrome (3896983).

The spelling of 2503931 in words is "two million, five hundred three thousand, nine hundred thirty-one".