50551616009 has 8 divisors (see below), whose sum is σ = 51421776000. Its totient is φ = 49681901232.

The previous prime is 50551615997. The next prime is 50551616033. The reversal of 50551616009 is 90061615505.

It is a happy number.

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 50551616009 - 2⁴ = 50551615993 is a prime.

It is a super-2 number, since 2×50551616009² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50551616509) 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, 121907 + ... + 340535.

It is an arithmetic number, because the mean of its divisors is an integer number (6427722000).

Almost surely, 2^50551616009 is an apocalyptic number.

50551616009 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

50551616009 is a deficient number, since it is larger than the sum of its proper divisors (870159991).

50551616009 is a wasteful number, since it uses less digits than its factorization.

50551616009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222607.

The product of its (nonzero) digits is 40500, while the sum is 38.

The spelling of 50551616009 in words is "fifty billion, five hundred fifty-one million, six hundred sixteen thousand, nine".