50397488561 has 8 divisors (see below), whose sum is σ = 57722073024. Its totient is φ = 43104139920.

The previous prime is 50397488551. The next prime is 50397488563. The reversal of 50397488561 is 16588479305.

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 50397488561 - 2⁶ = 50397488497 is a prime.

It is a super-2 number, since 2×50397488561² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50397488497 and 50397488506.

It is not an unprimeable number, because it can be changed into a prime (50397488563) 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, 7805495 + ... + 7811948.

It is an arithmetic number, because the mean of its divisors is an integer number (7215259128).

Almost surely, 2^50397488561 is an apocalyptic number.

It is an amenable number.

50397488561 is a deficient number, since it is larger than the sum of its proper divisors (7324584463).

50397488561 is a wasteful number, since it uses less digits than its factorization.

50397488561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15617911.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 50397488561 in words is "fifty billion, three hundred ninety-seven million, four hundred eighty-eight thousand, five hundred sixty-one".