56554521 has 4 divisors (see below), whose sum is σ = 75406032. Its totient is φ = 37703012.

The previous prime is 56554501. The next prime is 56554523. The reversal of 56554521 is 12545565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56554521 - 2¹¹ = 56552473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56554523) 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, 9425751 + ... + 9425756.

It is an arithmetic number, because the mean of its divisors is an integer number (18851508).

Almost surely, 2^56554521 is an apocalyptic number.

It is an amenable number.

56554521 is a deficient number, since it is larger than the sum of its proper divisors (18851511).

56554521 is a wasteful number, since it uses less digits than its factorization.

56554521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18851510.

The product of its digits is 30000, while the sum is 33.

The square root of 56554521 is about 7520.2739976679. The cubic root of 56554521 is about 383.8449012851.

It can be divided in two parts, 56554 and 521, that added together give a palindrome (57075).

The spelling of 56554521 in words is "fifty-six million, five hundred fifty-four thousand, five hundred twenty-one".