5213509 has 16 divisors (see below), whose sum is σ = 6369408. Its totient is φ = 4165632.

The previous prime is 5213501. The next prime is 5213539. The reversal of 5213509 is 9053125.

It is a cyclic number.

It is not a de Polignac number, because 5213509 - 2³ = 5213501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5213501) 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, 22854 + ... + 23080.

It is an arithmetic number, because the mean of its divisors is an integer number (398088).

Almost surely, 2^5213509 is an apocalyptic number.

It is an amenable number.

5213509 is a deficient number, since it is larger than the sum of its proper divisors (1155899).

5213509 is a wasteful number, since it uses less digits than its factorization.

5213509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 5213509 is about 2283.3109731265. The cubic root of 5213509 is about 173.3977172883.

The spelling of 5213509 in words is "five million, two hundred thirteen thousand, five hundred nine".