56536553 has 8 divisors (see below), whose sum is σ = 59548608. Its totient is φ = 53570704.

The previous prime is 56536549. The next prime is 56536559. The reversal of 56536553 is 35563565.

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 56536553 - 2² = 56536549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56536559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9026 + ... + 13947.

It is an arithmetic number, because the mean of its divisors is an integer number (7443576).

Almost surely, 2^56536553 is an apocalyptic number.

It is an amenable number.

56536553 is a deficient number, since it is larger than the sum of its proper divisors (3012055).

56536553 is a wasteful number, since it uses less digits than its factorization.

56536553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23103.

The product of its digits is 202500, while the sum is 38.

The square root of 56536553 is about 7519.0792654420. The cubic root of 56536553 is about 383.8042463819.

The spelling of 56536553 in words is "fifty-six million, five hundred thirty-six thousand, five hundred fifty-three".