2502431 has 4 divisors (see below), whose sum is σ = 2505864. Its totient is φ = 2499000.

The previous prime is 2502407. The next prime is 2502443. The reversal of 2502431 is 1342052.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2502431 is a prime.

It is a super-2 number, since 2×2502431² = 12524321819522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2502481) 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 3 ways as a sum of consecutive naturals, for example, 140 + ... + 2241.

It is an arithmetic number, because the mean of its divisors is an integer number (626466).

2^2502431 is an apocalyptic number.

2502431 is a deficient number, since it is larger than the sum of its proper divisors (3433).

2502431 is a wasteful number, since it uses less digits than its factorization.

2502431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3432.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2502431 is about 1581.9073929911. The cubic root of 2502431 is about 135.7648582398.

Adding to 2502431 its reverse (1342052), we get a palindrome (3844483).

The spelling of 2502431 in words is "two million, five hundred two thousand, four hundred thirty-one".