50551561313 has 8 divisors (see below), whose sum is σ = 55148790816. Its totient is φ = 45954604000.

The previous prime is 50551561309. The next prime is 50551561387. The reversal of 50551561313 is 31316515505.

50551561313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 50551561313 - 2² = 50551561309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50551591313) 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, 647270 + ... + 721152.

It is an arithmetic number, because the mean of its divisors is an integer number (6893598852).

Almost surely, 2^50551561313 is an apocalyptic number.

It is an amenable number.

50551561313 is a deficient number, since it is larger than the sum of its proper divisors (4597229503).

50551561313 is a wasteful number, since it uses less digits than its factorization.

50551561313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136095.

The product of its (nonzero) digits is 33750, while the sum is 35.

The spelling of 50551561313 in words is "fifty billion, five hundred fifty-one million, five hundred sixty-one thousand, three hundred thirteen".