50988509 has 8 divisors (see below), whose sum is σ = 59902752. Its totient is φ = 42787440.

The previous prime is 50988481. The next prime is 50988563. The reversal of 50988509 is 90588905.

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 50988509 - 2²⁰ = 49939933 is a prime.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 50988509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50988569) 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, 178139 + ... + 178424.

It is an arithmetic number, because the mean of its divisors is an integer number (7487844).

Almost surely, 2^50988509 is an apocalyptic number.

It is an amenable number.

50988509 is a deficient number, since it is larger than the sum of its proper divisors (8914243).

50988509 is a wasteful number, since it uses less digits than its factorization.

50988509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356587.

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 50988509 is about 7140.6238522975. The cubic root of 50988509 is about 370.8151228303.

The spelling of 50988509 in words is "fifty million, nine hundred eighty-eight thousand, five hundred nine".