55827261 has 48 divisors (see below), whose sum is σ = 95430400. Its totient is φ = 30792960.

The previous prime is 55827253. The next prime is 55827271. The reversal of 55827261 is 16272855.

It is a happy number.

55827261 is a `hidden beast` number, since 5 + 582 + 72 + 6 + 1 = 666.

It is not a de Polignac number, because 55827261 - 2³ = 55827253 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 (55827221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 280440 + ... + 280638.

Almost surely, 2^55827261 is an apocalyptic number.

It is an amenable number.

55827261 is a deficient number, since it is larger than the sum of its proper divisors (39603139).

55827261 is a wasteful number, since it uses less digits than its factorization.

55827261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 343 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 55827261 is about 7471.7642494929. The cubic root of 55827261 is about 382.1924530284.

The spelling of 55827261 in words is "fifty-five million, eight hundred twenty-seven thousand, two hundred sixty-one".