2533765 has 16 divisors (see below), whose sum is σ = 3468528. Its totient is φ = 1760256.

The previous prime is 2533753. The next prime is 2533801. The reversal of 2533765 is 5673352.

It can be written as a sum of positive squares in 8 ways, for example, as 128164 + 2405601 = 358^2 + 1551^2 .

It is a cyclic number.

It is not a de Polignac number, because 2533765 - 2⁵ = 2533733 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁵ + 3 + 3⁸ + 7 + 6⁶ + 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 15 ways as a sum of consecutive naturals, for example, 42 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (216783).

2^2533765 is an apocalyptic number.

It is an amenable number.

2533765 is a deficient number, since it is larger than the sum of its proper divisors (934763).

2533765 is a wasteful number, since it uses less digits than its factorization.

2533765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328.

The product of its digits is 18900, while the sum is 31.

The square root of 2533765 is about 1591.7804496852. The cubic root of 2533765 is about 136.3291659000.

The spelling of 2533765 in words is "two million, five hundred thirty-three thousand, seven hundred sixty-five".