55707559 has 4 divisors (see below), whose sum is σ = 55726216. Its totient is φ = 55688904.

The previous prime is 55707539. The next prime is 55707581. The reversal of 55707559 is 95570755.

55707559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55707559 - 2¹³ = 55699367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55707539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3729 + ... + 11194.

It is an arithmetic number, because the mean of its divisors is an integer number (13931554).

Almost surely, 2^55707559 is an apocalyptic number.

55707559 is a deficient number, since it is larger than the sum of its proper divisors (18657).

55707559 is a wasteful number, since it uses less digits than its factorization.

55707559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18656.

The product of its (nonzero) digits is 275625, while the sum is 43.

The square root of 55707559 is about 7463.7496608608. The cubic root of 55707559 is about 381.9190982974.

The spelling of 55707559 in words is "fifty-five million, seven hundred seven thousand, five hundred fifty-nine".