554251409 has 2 divisors, whose sum is σ = 554251410. Its totient is φ = 554251408.

The previous prime is 554251363. The next prime is 554251427. The reversal of 554251409 is 904152455.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397125184 + 157126225 = 19928^2 + 12535^2 .

It is a cyclic number.

It is not a de Polignac number, because 554251409 - 2¹² = 554247313 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (554251469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277125704 + 277125705.

It is an arithmetic number, because the mean of its divisors is an integer number (277125705).

Almost surely, 2^554251409 is an apocalyptic number.

It is an amenable number.

554251409 is a deficient number, since it is larger than the sum of its proper divisors (1).

554251409 is an equidigital number, since it uses as much as digits as its factorization.

554251409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 554251409 is about 23542.5446585538. The cubic root of 554251409 is about 821.4269270461.

The spelling of 554251409 in words is "five hundred fifty-four million, two hundred fifty-one thousand, four hundred nine".