2505723 has 8 divisors (see below), whose sum is σ = 3644736. Its totient is φ = 1518600.

The previous prime is 2505707. The next prime is 2505743. The reversal of 2505723 is 3275052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2505723 - 2⁴ = 2505707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2505693 and 2505702.

It is not an unprimeable number, because it can be changed into a prime (2505743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37933 + ... + 37998.

It is an arithmetic number, because the mean of its divisors is an integer number (455592).

2^2505723 is an apocalyptic number.

2505723 is a deficient number, since it is larger than the sum of its proper divisors (1139013).

2505723 is a wasteful number, since it uses less digits than its factorization.

2505723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75945.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 2505723 is about 1582.9475670407. The cubic root of 2505723 is about 135.8243659839.

The spelling of 2505723 in words is "two million, five hundred five thousand, seven hundred twenty-three".