2542765 has 8 divisors (see below), whose sum is σ = 3184128. Its totient is φ = 1945680.

The previous prime is 2542759. The next prime is 2542817. The reversal of 2542765 is 5672452.

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

It is not a de Polignac number, because 2542765 - 2⁵ = 2542733 is a prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 5⁸ + 4⁸ + 2¹⁶ + 7⁴ + 6 + 5⁹ .

It is a Duffinian number.

It is a congruent 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, 10941 + ... + 11170.

It is an arithmetic number, because the mean of its divisors is an integer number (398016).

2^2542765 is an apocalyptic number.

It is an amenable number.

2542765 is a deficient number, since it is larger than the sum of its proper divisors (641363).

2542765 is a wasteful number, since it uses less digits than its factorization.

2542765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22139.

The product of its digits is 16800, while the sum is 31.

The square root of 2542765 is about 1594.6049667551. The cubic root of 2542765 is about 136.4903900886.

The spelling of 2542765 in words is "two million, five hundred forty-two thousand, seven hundred sixty-five".