2575765 has 4 divisors (see below), whose sum is σ = 3090924. Its totient is φ = 2060608.

The previous prime is 2575757. The next prime is 2575777. The reversal of 2575765 is 5675752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 271441 + 2304324 = 521^2 + 1518^2 .

It is a cyclic number.

It is not a de Polignac number, because 2575765 - 2³ = 2575757 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 257572 + ... + 257581.

It is an arithmetic number, because the mean of its divisors is an integer number (772731).

2^2575765 is an apocalyptic number.

It is an amenable number.

2575765 is a deficient number, since it is larger than the sum of its proper divisors (515159).

2575765 is an equidigital number, since it uses as much as digits as its factorization.

2575765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515158.

The product of its digits is 73500, while the sum is 37.

The square root of 2575765 is about 1604.9190010714. The cubic root of 2575765 is about 137.0783113821.

The spelling of 2575765 in words is "two million, five hundred seventy-five thousand, seven hundred sixty-five".