115557543 has 32 divisors (see below), whose sum is σ = 182062080. Its totient is φ = 72277920.

The previous prime is 115557527. The next prime is 115557583. The reversal of 115557543 is 345755511.

It is a happy number.

115557543 is a `hidden beast` number, since 11 + 55 + 57 + 543 = 666.

It is not a de Polignac number, because 115557543 - 2⁴ = 115557527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115557498 and 115557507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115557503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31158 + ... + 34668.

It is an arithmetic number, because the mean of its divisors is an integer number (5689440).

Almost surely, 2^115557543 is an apocalyptic number.

115557543 is a deficient number, since it is larger than the sum of its proper divisors (66504537).

115557543 is a wasteful number, since it uses less digits than its factorization.

115557543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3596 (or 3590 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 115557543 is about 10749.7694393880. The cubic root of 115557543 is about 487.0790306692.

The spelling of 115557543 in words is "one hundred fifteen million, five hundred fifty-seven thousand, five hundred forty-three".