55500227 has 2 divisors, whose sum is σ = 55500228. Its totient is φ = 55500226.

The previous prime is 55500217. The next prime is 55500233. The reversal of 55500227 is 72200555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55500227 - 2⁶ = 55500163 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55500196 and 55500205.

It is not a weakly prime, because it can be changed into another prime (55500217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750113 + 27750114.

It is an arithmetic number, because the mean of its divisors is an integer number (27750114).

Almost surely, 2^55500227 is an apocalyptic number.

55500227 is a deficient number, since it is larger than the sum of its proper divisors (1).

55500227 is an equidigital number, since it uses as much as digits as its factorization.

55500227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 55500227 is about 7449.8474481025. The cubic root of 55500227 is about 381.4447013390. Note that the first 3 decimals are identical.

The spelling of 55500227 in words is "fifty-five million, five hundred thousand, two hundred twenty-seven".