2500631 has 8 divisors (see below), whose sum is σ = 2927904. Its totient is φ = 2090880.

The previous prime is 2500621. The next prime is 2500637. The reversal of 2500631 is 1360052.

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

It is a cyclic number.

It is not a de Polignac number, because 2500631 - 2¹⁸ = 2238487 is a prime.

It is a super-2 number, since 2×2500631² = 12506310796322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4070 + ... + 4643.

It is an arithmetic number, because the mean of its divisors is an integer number (365988).

2^2500631 is an apocalyptic number.

2500631 is a deficient number, since it is larger than the sum of its proper divisors (427273).

2500631 is an equidigital number, since it uses as much as digits as its factorization.

2500631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8761.

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

The square root of 2500631 is about 1581.3383572152. The cubic root of 2500631 is about 135.7322985193.

Adding to 2500631 its reverse (1360052), we get a palindrome (3860683).

The spelling of 2500631 in words is "two million, five hundred thousand, six hundred thirty-one".