2531006 has 4 divisors (see below), whose sum is σ = 3796512. Its totient is φ = 1265502.

The previous prime is 2530999. The next prime is 2531017. The reversal of 2531006 is 6001352.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632750 + ... + 632753.

It is an arithmetic number, because the mean of its divisors is an integer number (949128).

2^2531006 is an apocalyptic number.

2531006 is a deficient number, since it is larger than the sum of its proper divisors (1265506).

2531006 is a wasteful number, since it uses less digits than its factorization.

2531006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265505.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2531006 is about 1590.9135740197. The cubic root of 2531006 is about 136.2796652854.

Adding to 2531006 its reverse (6001352), we get a palindrome (8532358).

The spelling of 2531006 in words is "two million, five hundred thirty-one thousand, six".