2575642 has 4 divisors (see below), whose sum is σ = 3863466. Its totient is φ = 1287820.

The previous prime is 2575633. The next prime is 2575663. The reversal of 2575642 is 2465752.

2575642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 2430481 + 145161 = 1559^2 + 381^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643909 + ... + 643912.

2^2575642 is an apocalyptic number.

2575642 is a deficient number, since it is larger than the sum of its proper divisors (1287824).

2575642 is a wasteful number, since it uses less digits than its factorization.

2575642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287823.

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

The square root of 2575642 is about 1604.8806809230. The cubic root of 2575642 is about 137.0761293895.

The spelling of 2575642 in words is "two million, five hundred seventy-five thousand, six hundred forty-two".