50310052561 has 4 divisors (see below), whose sum is σ = 50328778752. Its totient is φ = 50291326372.

The previous prime is 50310052543. The next prime is 50310052567. The reversal of 50310052561 is 16525001305.

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 50310052561 - 2¹⁷ = 50309921489 is a prime.

It is a super-2 number, since 2×50310052561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50310052567) 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, 9359065 + ... + 9364438.

It is an arithmetic number, because the mean of its divisors is an integer number (12582194688).

Almost surely, 2^50310052561 is an apocalyptic number.

It is an amenable number.

50310052561 is a deficient number, since it is larger than the sum of its proper divisors (18726191).

50310052561 is a wasteful number, since it uses less digits than its factorization.

50310052561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18726190.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 50310052561 its reverse (16525001305), we get a palindrome (66835053866).

The spelling of 50310052561 in words is "fifty billion, three hundred ten million, fifty-two thousand, five hundred sixty-one".