2573659 has 4 divisors (see below), whose sum is σ = 2807640. Its totient is φ = 2339680.

The previous prime is 2573657. The next prime is 2573689. The reversal of 2573659 is 9563752.

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

It is a cyclic number.

It is not a de Polignac number, because 2573659 - 2¹ = 2573657 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁷ + 7⁵ + 3² + 6⁴ + 5⁹ + 9 .

It is not an unprimeable number, because it can be changed into a prime (2573653) 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, 116974 + ... + 116995.

It is an arithmetic number, because the mean of its divisors is an integer number (701910).

2^2573659 is an apocalyptic number.

2573659 is a deficient number, since it is larger than the sum of its proper divisors (233981).

2573659 is a wasteful number, since it uses less digits than its factorization.

2573659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233980.

The product of its digits is 56700, while the sum is 37.

The square root of 2573659 is about 1604.2627590267. The cubic root of 2573659 is about 137.0409418190.

It can be divided in two parts, 257 and 3659, that added together give a triangular number (3916 = T₈₈).

The spelling of 2573659 in words is "two million, five hundred seventy-three thousand, six hundred fifty-nine".