55724563 has 8 divisors (see below), whose sum is σ = 57715200. Its totient is φ = 53767560.

The previous prime is 55724533. The next prime is 55724567. The reversal of 55724563 is 36542755.

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 55724563 - 2¹³ = 55716371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55724567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5013 + ... + 11686.

It is an arithmetic number, because the mean of its divisors is an integer number (7214400).

Almost surely, 2^55724563 is an apocalyptic number.

55724563 is a deficient number, since it is larger than the sum of its proper divisors (1990637).

55724563 is a wasteful number, since it uses less digits than its factorization.

55724563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16817.

The product of its digits is 126000, while the sum is 37.

The square root of 55724563 is about 7464.8886796790. Note that the first 3 decimals coincide. The cubic root of 55724563 is about 381.9579529390.

The spelling of 55724563 in words is "fifty-five million, seven hundred twenty-four thousand, five hundred sixty-three".