2512491 has 4 divisors (see below), whose sum is σ = 3349992. Its totient is φ = 1674992.

The previous prime is 2512469. The next prime is 2512501. The reversal of 2512491 is 1942152.

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

It is a cyclic number.

It is not a de Polignac number, because 2512491 - 2⁵ = 2512459 is a prime.

It is a super-4 number, since 4×2512491⁴ (a number of 27 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a D-number.

2512491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2512691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418746 + ... + 418751.

It is an arithmetic number, because the mean of its divisors is an integer number (837498).

2^2512491 is an apocalyptic number.

2512491 is a deficient number, since it is larger than the sum of its proper divisors (837501).

2512491 is an equidigital number, since it uses as much as digits as its factorization.

2512491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837500.

The product of its digits is 720, while the sum is 24.

The square root of 2512491 is about 1585.0839094509. The cubic root of 2512491 is about 135.9465440145.

It can be divided in two parts, 2512 and 491, that added together give a palindrome (3003).

The spelling of 2512491 in words is "two million, five hundred twelve thousand, four hundred ninety-one".