55723505 has 8 divisors (see below), whose sum is σ = 66911424. Its totient is φ = 44550000.

The previous prime is 55723489. The next prime is 55723513. The reversal of 55723505 is 50532755.

55723505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55723505 - 2⁴ = 55723489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8780 + ... + 13730.

It is an arithmetic number, because the mean of its divisors is an integer number (8363928).

Almost surely, 2^55723505 is an apocalyptic number.

It is an amenable number.

55723505 is a deficient number, since it is larger than the sum of its proper divisors (11187919).

55723505 is a wasteful number, since it uses less digits than its factorization.

55723505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7207.

The product of its (nonzero) digits is 26250, while the sum is 32.

The square root of 55723505 is about 7464.8178142537. The cubic root of 55723505 is about 381.9555356084.

The spelling of 55723505 in words is "fifty-five million, seven hundred twenty-three thousand, five hundred five".