5601539 has 4 divisors (see below), whose sum is σ = 5608920. Its totient is φ = 5594160.

The previous prime is 5601527. The next prime is 5601593. The reversal of 5601539 is 9351065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9351065 = 5 ⋅1870213.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5601539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5601139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2402 + ... + 4119.

It is an arithmetic number, because the mean of its divisors is an integer number (1402230).

Almost surely, 2^5601539 is an apocalyptic number.

5601539 is a deficient number, since it is larger than the sum of its proper divisors (7381).

5601539 is an equidigital number, since it uses as much as digits as its factorization.

5601539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 5601539 is about 2366.7570640013. The cubic root of 5601539 is about 177.5970665283.

The spelling of 5601539 in words is "five million, six hundred one thousand, five hundred thirty-nine".