2612563 has 4 divisors (see below), whose sum is σ = 2620440. Its totient is φ = 2604688.

The previous prime is 2612549. The next prime is 2612647. The reversal of 2612563 is 3652162.

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 2612563 - 2¹⁷ = 2481491 is a prime.

It is a Duffinian number.

2612563 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2612503) 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, 3418 + ... + 4111.

It is an arithmetic number, because the mean of its divisors is an integer number (655110).

2^2612563 is an apocalyptic number.

2612563 is a deficient number, since it is larger than the sum of its proper divisors (7877).

2612563 is an equidigital number, since it uses as much as digits as its factorization.

2612563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7876.

The product of its digits is 2160, while the sum is 25.

The square root of 2612563 is about 1616.3424760861. The cubic root of 2612563 is about 137.7280051795.

The spelling of 2612563 in words is "two million, six hundred twelve thousand, five hundred sixty-three".