5400509 has 8 divisors (see below), whose sum is σ = 5738688. Its totient is φ = 5064640.

The previous prime is 5400457. The next prime is 5400511. The reversal of 5400509 is 9050045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5400509 - 2²⁰ = 4351933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5400559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8024 + ... + 8670.

It is an arithmetic number, because the mean of its divisors is an integer number (717336).

Almost surely, 2^5400509 is an apocalyptic number.

It is an amenable number.

5400509 is a deficient number, since it is larger than the sum of its proper divisors (338179).

5400509 is a wasteful number, since it uses less digits than its factorization.

5400509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 5400509 is about 2323.8995245062. The cubic root of 5400509 is about 175.4465764345.

The spelling of 5400509 in words is "five million, four hundred thousand, five hundred nine".