2516761 has 4 divisors (see below), whose sum is σ = 2710372. Its totient is φ = 2323152.

The previous prime is 2516713. The next prime is 2516771. The reversal of 2516761 is 1676152.

2516761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 891136 + 1625625 = 944^2 + 1275^2 .

It is not a de Polignac number, because 2516761 - 2⁹ = 2516249 is a prime.

It is a super-2 number, since 2×2516761² = 12668171862242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2516771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96786 + ... + 96811.

It is an arithmetic number, because the mean of its divisors is an integer number (677593).

2^2516761 is an apocalyptic number.

It is an amenable number.

2516761 is a deficient number, since it is larger than the sum of its proper divisors (193611).

2516761 is a wasteful number, since it uses less digits than its factorization.

2516761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193610.

The product of its digits is 2520, while the sum is 28.

The square root of 2516761 is about 1586.4302695045. The cubic root of 2516761 is about 136.0235145327.

The spelling of 2516761 in words is "two million, five hundred sixteen thousand, seven hundred sixty-one".