50520610561 has 4 divisors (see below), whose sum is σ = 50521560832. Its totient is φ = 50519660292.

The previous prime is 50520610513. The next prime is 50520610577. The reversal of 50520610561 is 16501602505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50520610561 - 2²⁵ = 50487056129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50524610561) 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, 390345 + ... + 503398.

It is an arithmetic number, because the mean of its divisors is an integer number (12630390208).

Almost surely, 2^50520610561 is an apocalyptic number.

It is an amenable number.

50520610561 is a deficient number, since it is larger than the sum of its proper divisors (950271).

50520610561 is an equidigital number, since it uses as much as digits as its factorization.

50520610561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950270.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 50520610561 in words is "fifty billion, five hundred twenty million, six hundred ten thousand, five hundred sixty-one".