61599543 has 8 divisors (see below), whose sum is σ = 85703808. Its totient is φ = 39280824.

The previous prime is 61599541. The next prime is 61599557. The reversal of 61599543 is 34599516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61599543 - 2¹ = 61599541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61599495 and 61599504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61599541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446305 + ... + 446442.

It is an arithmetic number, because the mean of its divisors is an integer number (10712976).

Almost surely, 2^61599543 is an apocalyptic number.

61599543 is a deficient number, since it is larger than the sum of its proper divisors (24104265).

61599543 is a wasteful number, since it uses less digits than its factorization.

61599543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892773.

The product of its digits is 145800, while the sum is 42.

The square root of 61599543 is about 7848.5376344896. The cubic root of 61599543 is about 394.9351877851.

The spelling of 61599543 in words is "sixty-one million, five hundred ninety-nine thousand, five hundred forty-three".