5150421509 has 4 divisors (see below), whose sum is σ = 5153872716. Its totient is φ = 5146970304.

The previous prime is 5150421491. The next prime is 5150421527. The reversal of 5150421509 is 9051240515.

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

It is an interprime number because it is at equal distance from previous prime (5150421491) and next prime (5150421527).

It can be written as a sum of positive squares in 2 ways, for example, as 3325252225 + 1825169284 = 57665^2 + 42722^2 .

It is a cyclic number.

It is not a de Polignac number, because 5150421509 - 2³² = 855454213 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 (5150421589) 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, 1723364 + ... + 1726349.

It is an arithmetic number, because the mean of its divisors is an integer number (1288468179).

Almost surely, 2^5150421509 is an apocalyptic number.

It is an amenable number.

5150421509 is a deficient number, since it is larger than the sum of its proper divisors (3451207).

5150421509 is a wasteful number, since it uses less digits than its factorization.

5150421509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451206.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 5150421509 is about 71766.4372043088. The cubic root of 5150421509 is about 1726.9546151748.

The spelling of 5150421509 in words is "five billion, one hundred fifty million, four hundred twenty-one thousand, five hundred nine".