2539653 has 8 divisors (see below), whose sum is σ = 3393600. Its totient is φ = 1689408.

The previous prime is 2539651. The next prime is 2539657. The reversal of 2539653 is 3569352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2539653 - 2¹ = 2539651 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁵ + 3 + 9⁵ + 6² + 5⁹ + 3³ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2013 + ... + 3021.

It is an arithmetic number, because the mean of its divisors is an integer number (424200).

2^2539653 is an apocalyptic number.

It is an amenable number.

2539653 is a deficient number, since it is larger than the sum of its proper divisors (853947).

2539653 is a wasteful number, since it uses less digits than its factorization.

2539653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851.

The product of its digits is 24300, while the sum is 33.

The square root of 2539653 is about 1593.6288777504. The cubic root of 2539653 is about 136.4346854398.

The spelling of 2539653 in words is "two million, five hundred thirty-nine thousand, six hundred fifty-three".