2516423645 has 8 divisors (see below), whose sum is σ = 3020582880. Its totient is φ = 2012555920.

The previous prime is 2516423639. The next prime is 2516423681. The reversal of 2516423645 is 5463246152.

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

It is not a de Polignac number, because 2516423645 - 2⁸ = 2516423389 is a prime.

It is a super-2 number, since 2×2516423645² = 12664775922230172050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2516423599 and 2516423608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53411 + ... + 88800.

It is an arithmetic number, because the mean of its divisors is an integer number (377572860).

Almost surely, 2^2516423645 is an apocalyptic number.

It is an amenable number.

2516423645 is a deficient number, since it is larger than the sum of its proper divisors (504159235).

2516423645 is a wasteful number, since it uses less digits than its factorization.

2516423645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145755.

The product of its digits is 172800, while the sum is 38.

The square root of 2516423645 is about 50163.9675962737. The cubic root of 2516423645 is about 1360.1743657996.

Adding to 2516423645 its reverse (5463246152), we get a palindrome (7979669797).

The spelling of 2516423645 in words is "two billion, five hundred sixteen million, four hundred twenty-three thousand, six hundred forty-five".