5261609 has 4 divisors (see below), whose sum is σ = 5384016. Its totient is φ = 5139204.

The previous prime is 5261587. The next prime is 5261611. The reversal of 5261609 is 9061625.

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 a cyclic number.

It is not a de Polignac number, because 5261609 - 2¹⁶ = 5196073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5261629) 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, 61139 + ... + 61224.

It is an arithmetic number, because the mean of its divisors is an integer number (1346004).

Almost surely, 2^5261609 is an apocalyptic number.

It is an amenable number.

5261609 is a deficient number, since it is larger than the sum of its proper divisors (122407).

5261609 is a wasteful number, since it uses less digits than its factorization.

5261609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122406.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 5261609 is about 2293.8197400842. The cubic root of 5261609 is about 173.9293433119.

The spelling of 5261609 in words is "five million, two hundred sixty-one thousand, six hundred nine".