50550509 has 8 divisors (see below), whose sum is σ = 53032320. Its totient is φ = 48118000.

The previous prime is 50550497. The next prime is 50550523. The reversal of 50550509 is 90505505.

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 50550509 - 2¹² = 50546413 is a prime.

It is a super-3 number, since 3×50550509³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50550559) 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, 10217 + ... + 14334.

It is an arithmetic number, because the mean of its divisors is an integer number (6629040).

Almost surely, 2^50550509 is an apocalyptic number.

It is an amenable number.

50550509 is a deficient number, since it is larger than the sum of its proper divisors (2481811).

50550509 is a wasteful number, since it uses less digits than its factorization.

50550509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24651.

The product of its (nonzero) digits is 5625, while the sum is 29.

The square root of 50550509 is about 7109.8881144502. Note that the first 3 decimals coincide. The cubic root of 50550509 is about 369.7502795121.

The spelling of 50550509 in words is "fifty million, five hundred fifty thousand, five hundred nine".