2505416687 has 8 divisors (see below), whose sum is σ = 2516712336. Its totient is φ = 2494145152.

The previous prime is 2505416659. The next prime is 2505416699. The reversal of 2505416687 is 7866145052.

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 2505416687 - 2²⁴ = 2488639471 is a prime.

It is a super-2 number, since 2×2505416687² = 12554225550996111938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505416387) 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, 221063 + ... + 232119.

It is an arithmetic number, because the mean of its divisors is an integer number (314589042).

Almost surely, 2^2505416687 is an apocalyptic number.

2505416687 is a deficient number, since it is larger than the sum of its proper divisors (11295649).

2505416687 is a wasteful number, since it uses less digits than its factorization.

2505416687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12057.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 2505416687 is about 50054.1375612446. The cubic root of 2505416687 is about 1358.1883112573.

The spelling of 2505416687 in words is "two billion, five hundred five million, four hundred sixteen thousand, six hundred eighty-seven".