550420427 has 2 divisors, whose sum is σ = 550420428. Its totient is φ = 550420426.

The previous prime is 550420421. The next prime is 550420447. The reversal of 550420427 is 724024055.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 550420427 - 2²² = 546226123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550420427.

It is not a weakly prime, because it can be changed into another prime (550420421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275210213 + 275210214.

It is an arithmetic number, because the mean of its divisors is an integer number (275210214).

Almost surely, 2^550420427 is an apocalyptic number.

550420427 is a deficient number, since it is larger than the sum of its proper divisors (1).

550420427 is an equidigital number, since it uses as much as digits as its factorization.

550420427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 550420427 is about 23461.0406205692. The cubic root of 550420427 is about 819.5299839643.

The spelling of 550420427 in words is "five hundred fifty million, four hundred twenty thousand, four hundred twenty-seven".