2563535 has 8 divisors (see below), whose sum is σ = 3312960. Its totient is φ = 1893024.

The previous prime is 2563523. The next prime is 2563543. The reversal of 2563535 is 5353652.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2563535 - 2¹² = 2559439 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 5⁴ + 6³ + 3⁵ + 5⁶ + 3¹⁰ + 5⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 2563498 and 2563507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19655 + ... + 19784.

It is an arithmetic number, because the mean of its divisors is an integer number (414120).

2^2563535 is an apocalyptic number.

2563535 is a deficient number, since it is larger than the sum of its proper divisors (749425).

2563535 is a wasteful number, since it uses less digits than its factorization.

2563535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39457.

The product of its digits is 13500, while the sum is 29.

The square root of 2563535 is about 1601.1043064085. The cubic root of 2563535 is about 136.8610130756.

The spelling of 2563535 in words is "two million, five hundred sixty-three thousand, five hundred thirty-five".