2501630 has 16 divisors (see below), whose sum is σ = 4551120. Its totient is φ = 989952.

The previous prime is 2501623. The next prime is 2501647. The reversal of 2501630 is 361052.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2501599 and 2501608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320 + ... + 2259.

It is an arithmetic number, because the mean of its divisors is an integer number (284445).

2^2501630 is an apocalyptic number.

2501630 is a deficient number, since it is larger than the sum of its proper divisors (2049490).

2501630 is a wasteful number, since it uses less digits than its factorization.

2501630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683.

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

The square root of 2501630 is about 1581.6541973516. The cubic root of 2501630 is about 135.7503710929.

Adding to 2501630 its reverse (361052), we get a palindrome (2862682).

The spelling of 2501630 in words is "two million, five hundred one thousand, six hundred thirty".