5125806487 has 4 divisors (see below), whose sum is σ = 5166167296. Its totient is φ = 5085445680.

The previous prime is 5125806467. The next prime is 5125806503. The reversal of 5125806487 is 7846085215.

5125806487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5125806487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5125806407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20180214 + ... + 20180467.

It is an arithmetic number, because the mean of its divisors is an integer number (1291541824).

Almost surely, 2^5125806487 is an apocalyptic number.

5125806487 is a deficient number, since it is larger than the sum of its proper divisors (40360809).

5125806487 is a wasteful number, since it uses less digits than its factorization.

5125806487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40360808.

The product of its (nonzero) digits is 537600, while the sum is 46.

The square root of 5125806487 is about 71594.7378443416. The cubic root of 5125806487 is about 1724.1990525984.

The spelling of 5125806487 in words is "five billion, one hundred twenty-five million, eight hundred six thousand, four hundred eighty-seven".