55232227 has 2 divisors, whose sum is σ = 55232228. Its totient is φ = 55232226.

The previous prime is 55232213. The next prime is 55232237. The reversal of 55232227 is 72223255.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55232227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55232195 and 55232204.

It is not a weakly prime, because it can be changed into another prime (55232237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27616113 + 27616114.

It is an arithmetic number, because the mean of its divisors is an integer number (27616114).

Almost surely, 2^55232227 is an apocalyptic number.

55232227 is a deficient number, since it is larger than the sum of its proper divisors (1).

55232227 is an equidigital number, since it uses as much as digits as its factorization.

55232227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 28.

The square root of 55232227 is about 7431.8387361406. The cubic root of 55232227 is about 380.8297358784.

It can be divided in two parts, 5523 and 2227, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 55232227 in words is "fifty-five million, two hundred thirty-two thousand, two hundred twenty-seven".