5601909 has 4 divisors (see below), whose sum is σ = 7469216. Its totient is φ = 3734604.

The previous prime is 5601907. The next prime is 5601923. The reversal of 5601909 is 9091065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5601909 - 2¹ = 5601907 is a prime.

It is a D-number.

It is a Duffinian number.

5601909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5601907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933649 + ... + 933654.

It is an arithmetic number, because the mean of its divisors is an integer number (1867304).

Almost surely, 2^5601909 is an apocalyptic number.

It is an amenable number.

5601909 is a deficient number, since it is larger than the sum of its proper divisors (1867307).

5601909 is a wasteful number, since it uses less digits than its factorization.

5601909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867306.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 5601909 is about 2366.8352287390. The cubic root of 5601909 is about 177.6009767315.

The spelling of 5601909 in words is "five million, six hundred one thousand, nine hundred nine".