2515723 has 4 divisors (see below), whose sum is σ = 2875120. Its totient is φ = 2156328.

The previous prime is 2515703. The next prime is 2515727. The reversal of 2515723 is 3275152.

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 2515723 - 2⁵ = 2515691 is a prime.

It is a Duffinian number.

2515723 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2515727) 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, 179688 + ... + 179701.

It is an arithmetic number, because the mean of its divisors is an integer number (718780).

2^2515723 is an apocalyptic number.

2515723 is a deficient number, since it is larger than the sum of its proper divisors (359397).

2515723 is an equidigital number, since it uses as much as digits as its factorization.

2515723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359396.

The product of its digits is 2100, while the sum is 25.

The square root of 2515723 is about 1586.1030861832. The cubic root of 2515723 is about 136.0048116810.

The spelling of 2515723 in words is "two million, five hundred fifteen thousand, seven hundred twenty-three".