55236827 has 4 divisors (see below), whose sum is σ = 55334136. Its totient is φ = 55139520.

The previous prime is 55236809. The next prime is 55236829. The reversal of 55236827 is 72863255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55236827 - 2⁶ = 55236763 is a prime.

It is a super-2 number, since 2×55236827² = 6102214114055858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55236829) 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, 47798 + ... + 48939.

It is an arithmetic number, because the mean of its divisors is an integer number (13833534).

Almost surely, 2^55236827 is an apocalyptic number.

55236827 is a deficient number, since it is larger than the sum of its proper divisors (97309).

55236827 is an equidigital number, since it uses as much as digits as its factorization.

55236827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97308.

The product of its digits is 100800, while the sum is 38.

The square root of 55236827 is about 7432.1482089635. The cubic root of 55236827 is about 380.8403080162.

The spelling of 55236827 in words is "fifty-five million, two hundred thirty-six thousand, eight hundred twenty-seven".