50917989403 has 8 divisors (see below), whose sum is σ = 51173762480. Its totient is φ = 50662856160.

The previous prime is 50917989383. The next prime is 50917989461. The reversal of 50917989403 is 30498971905.

50917989403 is a nontrivial binomial coefficient, being equal to C(319118, 2).

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 50917989403 - 2¹³ = 50917981211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50917989203) 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, 1 + ... + 319117.

It is an arithmetic number, because the mean of its divisors is an integer number (6396720310).

Almost surely, 2^50917989403 is an apocalyptic number.

50917989403 is the 319117-th triangular number and also the 159559-th hexagonal number.

50917989403 is the 106373-rd centered nonagonal number.

50917989403 is a deficient number, since it is larger than the sum of its proper divisors (255773077).

50917989403 is a wasteful number, since it uses less digits than its factorization.

50917989403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319917.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 50917989403 in words is "fifty billion, nine hundred seventeen million, nine hundred eighty-nine thousand, four hundred three".