2498581 has 8 divisors (see below), whose sum is σ = 2583000. Its totient is φ = 2415360.

The previous prime is 2498539. The next prime is 2498593. The reversal of 2498581 is 1858942.

It can be written as a sum of positive squares in 4 ways, for example, as 46225 + 2452356 = 215^2 + 1566^2 .

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 2498581 - 2⁷ = 2498453 is a prime.

It is a super-2 number, since 2×2498581² = 12485814027122, which contains 22 as substring.

2498581 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2498581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2498521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5905 + ... + 6313.

It is an arithmetic number, because the mean of its divisors is an integer number (322875).

2^2498581 is an apocalyptic number.

It is an amenable number.

2498581 is a deficient number, since it is larger than the sum of its proper divisors (84419).

2498581 is a wasteful number, since it uses less digits than its factorization.

2498581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599.

The product of its digits is 23040, while the sum is 37.

The square root of 2498581 is about 1580.6900391917. The cubic root of 2498581 is about 135.6951975792.

The spelling of 2498581 in words is "two million, four hundred ninety-eight thousand, five hundred eighty-one".