2502723 has 16 divisors (see below), whose sum is σ = 3649536. Its totient is φ = 1518720.

The previous prime is 2502719. The next prime is 2502733. The reversal of 2502723 is 3272052.

It is a Cunningham number, because it is equal to 1582²-1.

It is not a de Polignac number, because 2502723 - 2² = 2502719 is a prime.

2502723 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2502723.

It is not an unprimeable number, because it can be changed into a prime (2502733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790 + ... + 2372.

It is an arithmetic number, because the mean of its divisors is an integer number (228096).

2^2502723 is an apocalyptic number.

2502723 is a deficient number, since it is larger than the sum of its proper divisors (1146813).

2502723 is a wasteful number, since it uses less digits than its factorization.

2502723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 2502723 is about 1581.9996839443. Note that the first 3 decimals coincide. The cubic root of 2502723 is about 135.7701386780.

Adding to 2502723 its reverse (3272052), we get a palindrome (5774775).

The spelling of 2502723 in words is "two million, five hundred two thousand, seven hundred twenty-three".