2575997 has 4 divisors (see below), whose sum is σ = 2599740. Its totient is φ = 2552256.

The previous prime is 2575967. The next prime is 2576003. The reversal of 2575997 is 7995752.

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 2105401 + 470596 = 1451^2 + 686^2 .

It is a cyclic number.

It is not a de Polignac number, because 2575997 - 2⁶ = 2575933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2575967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11708 + ... + 11925.

It is an arithmetic number, because the mean of its divisors is an integer number (649935).

2^2575997 is an apocalyptic number.

It is an amenable number.

2575997 is a deficient number, since it is larger than the sum of its proper divisors (23743).

2575997 is a wasteful number, since it uses less digits than its factorization.

2575997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23742.

The product of its digits is 198450, while the sum is 44.

The square root of 2575997 is about 1604.9912772349. The cubic root of 2575997 is about 137.0824268214.

The spelling of 2575997 in words is "two million, five hundred seventy-five thousand, nine hundred ninety-seven".