2516641 has 4 divisors (see below), whose sum is σ = 2535984. Its totient is φ = 2497300.

The previous prime is 2516603. The next prime is 2516659. The reversal of 2516641 is 1466152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2516641 - 2⁷ = 2516513 is a prime.

It is a Duffinian number.

2516641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2516681) 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, 9475 + ... + 9736.

It is an arithmetic number, because the mean of its divisors is an integer number (633996).

2^2516641 is an apocalyptic number.

It is an amenable number.

2516641 is a deficient number, since it is larger than the sum of its proper divisors (19343).

2516641 is a wasteful number, since it uses less digits than its factorization.

2516641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19342.

The product of its digits is 1440, while the sum is 25.

The square root of 2516641 is about 1586.3924482927. The cubic root of 2516641 is about 136.0213526162.

It can be divided in two parts, 25 and 16641, that multiplied together give a square (416025 = 645²).

The spelling of 2516641 in words is "two million, five hundred sixteen thousand, six hundred forty-one".