2559694 has 4 divisors (see below), whose sum is σ = 3839544. Its totient is φ = 1279846.

The previous prime is 2559691. The next prime is 2559703. The reversal of 2559694 is 4969552.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2559691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639922 + ... + 639925.

It is an arithmetic number, because the mean of its divisors is an integer number (959886).

2^2559694 is an apocalyptic number.

2559694 is a deficient number, since it is larger than the sum of its proper divisors (1279850).

2559694 is a wasteful number, since it uses less digits than its factorization.

2559694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279849.

The product of its digits is 97200, while the sum is 40.

The square root of 2559694 is about 1599.9043721423. The cubic root of 2559694 is about 136.7926249686.

The spelling of 2559694 in words is "two million, five hundred fifty-nine thousand, six hundred ninety-four".