55497313 has 4 divisors (see below), whose sum is σ = 56850948. Its totient is φ = 54143680.

The previous prime is 55497293. The next prime is 55497317. The reversal of 55497313 is 31379455.

55497313 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 an emirpimes, since its reverse is a distinct semiprime: 31379455 = 5 ⋅6275891.

It can be written as a sum of positive squares in 2 ways, for example, as 32341969 + 23155344 = 5687^2 + 4812^2 .

It is a cyclic number.

It is not a de Polignac number, because 55497313 - 2²⁵ = 21942881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55497317) 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, 676756 + ... + 676837.

It is an arithmetic number, because the mean of its divisors is an integer number (14212737).

Almost surely, 2^55497313 is an apocalyptic number.

It is an amenable number.

55497313 is a deficient number, since it is larger than the sum of its proper divisors (1353635).

55497313 is a wasteful number, since it uses less digits than its factorization.

55497313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353634.

The product of its digits is 56700, while the sum is 37.

The square root of 55497313 is about 7449.6518710608. The cubic root of 55497313 is about 381.4380253944.

The spelling of 55497313 in words is "fifty-five million, four hundred ninety-seven thousand, three hundred thirteen".