50251560643 has 4 divisors (see below), whose sum is σ = 50300779648. Its totient is φ = 50202341640.

The previous prime is 50251560637. The next prime is 50251560707. The reversal of 50251560643 is 34606515205.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50251560643 - 2⁹ = 50251560131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50251563643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24607971 + ... + 24610012.

It is an arithmetic number, because the mean of its divisors is an integer number (12575194912).

Almost surely, 2^50251560643 is an apocalyptic number.

50251560643 is a deficient number, since it is larger than the sum of its proper divisors (49219005).

50251560643 is a wasteful number, since it uses less digits than its factorization.

50251560643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49219004.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 50251560643 in words is "fifty billion, two hundred fifty-one million, five hundred sixty thousand, six hundred forty-three".