55013577 has 4 divisors (see below), whose sum is σ = 73351440. Its totient is φ = 36675716.

The previous prime is 55013573. The next prime is 55013579. The reversal of 55013577 is 77531055.

55013577 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, 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 55013577 - 2² = 55013573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55013573) 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, 9168927 + ... + 9168932.

It is an arithmetic number, because the mean of its divisors is an integer number (18337860).

Almost surely, 2^55013577 is an apocalyptic number.

It is an amenable number.

55013577 is a deficient number, since it is larger than the sum of its proper divisors (18337863).

55013577 is a wasteful number, since it uses less digits than its factorization.

55013577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18337862.

The product of its (nonzero) digits is 18375, while the sum is 33.

The square root of 55013577 is about 7417.1137917656. The cubic root of 55013577 is about 380.3265360383.

The spelling of 55013577 in words is "fifty-five million, thirteen thousand, five hundred seventy-seven".