50351521405 has 8 divisors (see below), whose sum is σ = 60956532792. Its totient is φ = 39924745728.

The previous prime is 50351521343. The next prime is 50351521427. The reversal of 50351521405 is 50412515305.

It can be written as a sum of positive squares in 4 ways, for example, as 1012894276 + 49338627129 = 31826^2 + 222123^2 .

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 50351521405 - 2³³ = 41761586813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44558304 + ... + 44559433.

It is an arithmetic number, because the mean of its divisors is an integer number (7619566599).

Almost surely, 2^50351521405 is an apocalyptic number.

It is an amenable number.

50351521405 is a deficient number, since it is larger than the sum of its proper divisors (10605011387).

50351521405 is a wasteful number, since it uses less digits than its factorization.

50351521405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89117855.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 50351521405 in words is "fifty billion, three hundred fifty-one million, five hundred twenty-one thousand, four hundred five".