2542569 has 8 divisors (see below), whose sum is σ = 3454272. Its totient is φ = 1662960.

The previous prime is 2542567. The next prime is 2542577. The reversal of 2542569 is 9652452.

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

It is not a de Polignac number, because 2542569 - 2¹ = 2542567 is a prime.

It is a super-2 number, since 2×2542569² = 12929314239522, which contains 22 as substring.

2542569 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7837 + ... + 8154.

It is an arithmetic number, because the mean of its divisors is an integer number (431784).

2^2542569 is an apocalyptic number.

It is an amenable number.

2542569 is a deficient number, since it is larger than the sum of its proper divisors (911703).

2542569 is a wasteful number, since it uses less digits than its factorization.

2542569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16047.

The product of its digits is 21600, while the sum is 33.

The square root of 2542569 is about 1594.5435083434. The cubic root of 2542569 is about 136.4868830396.

The spelling of 2542569 in words is "two million, five hundred forty-two thousand, five hundred sixty-nine".