5656523 has 4 divisors (see below), whose sum is σ = 5809440. Its totient is φ = 5503608.

The previous prime is 5656493. The next prime is 5656549. The reversal of 5656523 is 3256565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5656523 - 2¹⁶ = 5590987 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5656523.

It is not an unprimeable number, because it can be changed into a prime (5656423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76403 + ... + 76476.

It is an arithmetic number, because the mean of its divisors is an integer number (1452360).

Almost surely, 2^5656523 is an apocalyptic number.

5656523 is a deficient number, since it is larger than the sum of its proper divisors (152917).

5656523 is a wasteful number, since it uses less digits than its factorization.

5656523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152916.

The product of its digits is 27000, while the sum is 32.

The square root of 5656523 is about 2378.3445923583. The cubic root of 5656523 is about 178.1762656584.

The spelling of 5656523 in words is "five million, six hundred fifty-six thousand, five hundred twenty-three".