52566774157 has 4 divisors (see below), whose sum is σ = 52569680800. Its totient is φ = 52563867516.

The previous prime is 52566774151. The next prime is 52566774167. The reversal of 52566774157 is 75147766525.

52566774157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52566774157 - 2¹¹ = 52566772109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52566774098 and 52566774107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52566774151) 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, 1426023 + ... + 1462420.

It is an arithmetic number, because the mean of its divisors is an integer number (13142420200).

Almost surely, 2^52566774157 is an apocalyptic number.

It is an amenable number.

52566774157 is a deficient number, since it is larger than the sum of its proper divisors (2906643).

52566774157 is a wasteful number, since it uses less digits than its factorization.

52566774157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906642.

The product of its digits is 12348000, while the sum is 55.

The spelling of 52566774157 in words is "fifty-two billion, five hundred sixty-six million, seven hundred seventy-four thousand, one hundred fifty-seven".