2523538 has 4 divisors (see below), whose sum is σ = 3785310. Its totient is φ = 1261768.

The previous prime is 2523533. The next prime is 2523539. The reversal of 2523538 is 8353252.

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., 2122849 + 400689 = 1457^2 + 633^2 .

It is a d-powerful number, because it can be written as 2¹⁰ + 5⁸ + 2¹⁰ + 3⁴ + 5⁹ + 3¹¹ + 8³ .

It is not an unprimeable number, because it can be changed into a prime (2523533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630883 + ... + 630886.

2^2523538 is an apocalyptic number.

2523538 is a deficient number, since it is larger than the sum of its proper divisors (1261772).

2523538 is a wasteful number, since it uses less digits than its factorization.

2523538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261771.

The product of its digits is 7200, while the sum is 28.

The square root of 2523538 is about 1588.5647610343. The cubic root of 2523538 is about 136.1454974006.

The spelling of 2523538 in words is "two million, five hundred twenty-three thousand, five hundred thirty-eight".