2523604 has 6 divisors (see below), whose sum is σ = 4416314. Its totient is φ = 1261800.

The previous prime is 2523593. The next prime is 2523641. The reversal of 2523604 is 4063252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2402500 + 121104 = 1550^2 + 348^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315447 + ... + 315454.

2^2523604 is an apocalyptic number.

It is an amenable number.

2523604 is a deficient number, since it is larger than the sum of its proper divisors (1892710).

2523604 is a wasteful number, since it uses less digits than its factorization.

2523604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630905 (or 630903 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2523604 is about 1588.5855343670. The cubic root of 2523604 is about 136.1466842957.

Adding to 2523604 its reverse (4063252), we get a palindrome (6586856).

The spelling of 2523604 in words is "two million, five hundred twenty-three thousand, six hundred four".