2542505 has 8 divisors (see below), whose sum is σ = 3486912. Its totient is φ = 1743408.

The previous prime is 2542483. The next prime is 2542511. The reversal of 2542505 is 5052452.

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

It is a cyclic number.

It is not a de Polignac number, because 2542505 - 2²⁰ = 1493929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36287 + ... + 36356.

It is an arithmetic number, because the mean of its divisors is an integer number (435864).

2^2542505 is an apocalyptic number.

It is an amenable number.

2542505 is a deficient number, since it is larger than the sum of its proper divisors (944407).

2542505 is an equidigital number, since it uses as much as digits as its factorization.

2542505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72655.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 2542505 is about 1594.5234397775. The cubic root of 2542505 is about 136.4857378418.

Adding to 2542505 its reverse (5052452), we get a palindrome (7594957).

The spelling of 2542505 in words is "two million, five hundred forty-two thousand, five hundred five".