2523665 has 8 divisors (see below), whose sum is σ = 3093120. Its totient is φ = 1975792.

The previous prime is 2523643. The next prime is 2523671. The reversal of 2523665 is 5663252.

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 a de Polignac number, because none of the positive numbers 2^k-2523665 is a prime.

It is a plaindrome in base 14.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5135 + ... + 5604.

It is an arithmetic number, because the mean of its divisors is an integer number (386640).

2^2523665 is an apocalyptic number.

It is an amenable number.

2523665 is a deficient number, since it is larger than the sum of its proper divisors (569455).

2523665 is a wasteful number, since it uses less digits than its factorization.

2523665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10791.

The product of its digits is 10800, while the sum is 29.

The square root of 2523665 is about 1588.6047337208. The cubic root of 2523665 is about 136.1477812561.

The spelling of 2523665 in words is "two million, five hundred twenty-three thousand, six hundred sixty-five".