55486573 has 4 divisors (see below), whose sum is σ = 55765600. Its totient is φ = 55207548.

The previous prime is 55486567. The next prime is 55486591. The reversal of 55486573 is 37568455.

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 a de Polignac number, because none of the positive numbers 2^k-55486573 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 (55486513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139215 + ... + 139612.

It is an arithmetic number, because the mean of its divisors is an integer number (13941400).

Almost surely, 2^55486573 is an apocalyptic number.

It is an amenable number.

55486573 is a deficient number, since it is larger than the sum of its proper divisors (279027).

55486573 is a wasteful number, since it uses less digits than its factorization.

55486573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279026.

The product of its digits is 504000, while the sum is 43.

The square root of 55486573 is about 7448.9309971297. The cubic root of 55486573 is about 381.4134181449.

It can be divided in two parts, 5548 and 6573, that added together give a palindrome (12121).

The spelling of 55486573 in words is "fifty-five million, four hundred eighty-six thousand, five hundred seventy-three".