55097573 has 4 divisors (see below), whose sum is σ = 55223520. Its totient is φ = 54971628.

The previous prime is 55097543. The next prime is 55097591. The reversal of 55097573 is 37579055.

It is a happy number.

55097573 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 55097573 - 2¹² = 55093477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55097573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55097513) 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, 62315 + ... + 63192.

It is an arithmetic number, because the mean of its divisors is an integer number (13805880).

Almost surely, 2^55097573 is an apocalyptic number.

It is an amenable number.

55097573 is a deficient number, since it is larger than the sum of its proper divisors (125947).

55097573 is a wasteful number, since it uses less digits than its factorization.

55097573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125946.

The product of its (nonzero) digits is 165375, while the sum is 41.

The square root of 55097573 is about 7422.7739424019. The cubic root of 55097573 is about 380.5200013891.

The spelling of 55097573 in words is "fifty-five million, ninety-seven thousand, five hundred seventy-three".