50249572957 has 4 divisors (see below), whose sum is σ = 50421073500. Its totient is φ = 50078072416.

The previous prime is 50249572937. The next prime is 50249572969. The reversal of 50249572957 is 75927594205.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49009547161 + 1240025796 = 221381^2 + 35214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50249572957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50249572898 and 50249572907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50249572937) 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, 85749832 + ... + 85750417.

It is an arithmetic number, because the mean of its divisors is an integer number (12605268375).

Almost surely, 2^50249572957 is an apocalyptic number.

It is an amenable number.

50249572957 is a deficient number, since it is larger than the sum of its proper divisors (171500543).

50249572957 is a wasteful number, since it uses less digits than its factorization.

50249572957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171500542.

The product of its (nonzero) digits is 7938000, while the sum is 55.

The spelling of 50249572957 in words is "fifty billion, two hundred forty-nine million, five hundred seventy-two thousand, nine hundred fifty-seven".