50722536157 has 4 divisors (see below), whose sum is σ = 52927863840. Its totient is φ = 48517208476.

The previous prime is 50722536143. The next prime is 50722536167. The reversal of 50722536157 is 75163522705.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75163522705 = 5 ⋅15032704541.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50722536157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50722536167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102663807 + ... + 1102663852.

It is an arithmetic number, because the mean of its divisors is an integer number (13231965960).

Almost surely, 2^50722536157 is an apocalyptic number.

It is an amenable number.

50722536157 is a deficient number, since it is larger than the sum of its proper divisors (2205327683).

50722536157 is a wasteful number, since it uses less digits than its factorization.

50722536157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205327682.

The product of its (nonzero) digits is 441000, while the sum is 43.

The spelling of 50722536157 in words is "fifty billion, seven hundred twenty-two million, five hundred thirty-six thousand, one hundred fifty-seven".