55327261 has 4 divisors (see below), whose sum is σ = 60357024. Its totient is φ = 50297500.

The previous prime is 55327249. The next prime is 55327301. The reversal of 55327261 is 16272355.

55327261 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 not a de Polignac number, because 55327261 - 2¹¹ = 55325213 is a prime.

It is a super-2 number, since 2×55327261² = 6122211619524242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55327241) 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, 2514865 + ... + 2514886.

It is an arithmetic number, because the mean of its divisors is an integer number (15089256).

Almost surely, 2^55327261 is an apocalyptic number.

It is an amenable number.

55327261 is a deficient number, since it is larger than the sum of its proper divisors (5029763).

55327261 is a wasteful number, since it uses less digits than its factorization.

55327261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029762.

The product of its digits is 12600, while the sum is 31.

The square root of 55327261 is about 7438.2296952971. The cubic root of 55327261 is about 381.0480325589.

The spelling of 55327261 in words is "fifty-five million, three hundred twenty-seven thousand, two hundred sixty-one".