2500723643 has 8 divisors (see below), whose sum is σ = 2753559360. Its totient is φ = 2252137480.

The previous prime is 2500723607. The next prime is 2500723657. The reversal of 2500723643 is 3463270052.

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

It is a cyclic number.

It is not a de Polignac number, because 2500723643 - 2⁸ = 2500723387 is a prime.

It is a super-3 number, since 3×2500723643³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2500723663) 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, 1061153 + ... + 1063506.

It is an arithmetic number, because the mean of its divisors is an integer number (344194920).

Almost surely, 2^2500723643 is an apocalyptic number.

2500723643 is a deficient number, since it is larger than the sum of its proper divisors (252835717).

2500723643 is a wasteful number, since it uses less digits than its factorization.

2500723643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124777.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 2500723643 is about 50007.2359064166. The cubic root of 2500723643 is about 1357.3397469517.

Adding to 2500723643 its reverse (3463270052), we get a palindrome (5963993695).

The spelling of 2500723643 in words is "two billion, five hundred million, seven hundred twenty-three thousand, six hundred forty-three".