5151089521 has 4 divisors (see below), whose sum is σ = 5154416500. Its totient is φ = 5147762544.

The previous prime is 5151089513. The next prime is 5151089527. The reversal of 5151089521 is 1259801515.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2252451600 + 2898637921 = 47460^2 + 53839^2 .

It is a cyclic number.

It is not a de Polignac number, because 5151089521 - 2³ = 5151089513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5151089527) 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, 1661166 + ... + 1664263.

It is an arithmetic number, because the mean of its divisors is an integer number (1288604125).

Almost surely, 2^5151089521 is an apocalyptic number.

It is an amenable number.

5151089521 is a deficient number, since it is larger than the sum of its proper divisors (3326979).

5151089521 is a wasteful number, since it uses less digits than its factorization.

5151089521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326978.

The product of its (nonzero) digits is 18000, while the sum is 37.

The square root of 5151089521 is about 71771.0911230977. The cubic root of 5151089521 is about 1727.0292742121.

The spelling of 5151089521 in words is "five billion, one hundred fifty-one million, eighty-nine thousand, five hundred twenty-one".