40599559 has 16 divisors (see below), whose sum is σ = 54512640. Its totient is φ = 29201760.

The previous prime is 40599547. The next prime is 40599563. The reversal of 40599559 is 95599504.

It is not a de Polignac number, because 40599559 - 2¹⁷ = 40468487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40599509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19279 + ... + 21280.

It is an arithmetic number, because the mean of its divisors is an integer number (3407040).

Almost surely, 2^40599559 is an apocalyptic number.

40599559 is a deficient number, since it is larger than the sum of its proper divisors (13913081).

40599559 is a wasteful number, since it uses less digits than its factorization.

40599559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40590.

The product of its (nonzero) digits is 364500, while the sum is 46.

The square root of 40599559 is about 6371.7783231999. The cubic root of 40599559 is about 343.6954415230.

Subtracting 40599559 from its reverse (95599504), we obtain a palindrome (54999945).

The spelling of 40599559 in words is "forty million, five hundred ninety-nine thousand, five hundred fifty-nine".