52743478557 has 24 divisors (see below), whose sum is σ = 88341698368. Its totient is φ = 27399208320.

The previous prime is 52743478481. The next prime is 52743478561. The reversal of 52743478557 is 75587434725.

It is a happy number.

52743478557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52743478557 - 2¹⁴ = 52743462173 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 52743478497 and 52743478506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52743478157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10375948 + ... + 10381029.

Almost surely, 2^52743478557 is an apocalyptic number.

It is an amenable number.

52743478557 is a deficient number, since it is larger than the sum of its proper divisors (35598219811).

52743478557 is a wasteful number, since it uses less digits than its factorization.

52743478557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20757009 (or 20756998 counting only the distinct ones).

The product of its digits is 32928000, while the sum is 57.

The spelling of 52743478557 in words is "fifty-two billion, seven hundred forty-three million, four hundred seventy-eight thousand, five hundred fifty-seven".