55319269 has 4 divisors (see below), whose sum is σ = 57226860. Its totient is φ = 53411680.

The previous prime is 55319267. The next prime is 55319273. The reversal of 55319269 is 96291355.

It is a happy number.

55319269 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: 96291355 = 5 ⋅19258271.

It can be written as a sum of positive squares in 2 ways, for example, as 47128225 + 8191044 = 6865^2 + 2862^2 .

It is a cyclic number.

It is not a de Polignac number, because 55319269 - 2¹ = 55319267 is a prime.

It is a super-2 number, since 2×55319269² = 6120443045388722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55319267) 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, 953752 + ... + 953809.

It is an arithmetic number, because the mean of its divisors is an integer number (14306715).

Almost surely, 2^55319269 is an apocalyptic number.

It is an amenable number.

55319269 is a deficient number, since it is larger than the sum of its proper divisors (1907591).

55319269 is a wasteful number, since it uses less digits than its factorization.

55319269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907590.

The product of its digits is 72900, while the sum is 40.

The square root of 55319269 is about 7437.6924512916. The cubic root of 55319269 is about 381.0296842651.

The spelling of 55319269 in words is "fifty-five million, three hundred nineteen thousand, two hundred sixty-nine".