409280551 has 2 divisors, whose sum is σ = 409280552. Its totient is φ = 409280550.

The previous prime is 409280497. The next prime is 409280587. The reversal of 409280551 is 155082904.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409280551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409280951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204640275 + 204640276.

It is an arithmetic number, because the mean of its divisors is an integer number (204640276).

Almost surely, 2^409280551 is an apocalyptic number.

409280551 is a deficient number, since it is larger than the sum of its proper divisors (1).

409280551 is an equidigital number, since it uses as much as digits as its factorization.

409280551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 409280551 is about 20230.6834041759. The cubic root of 409280551 is about 742.4610966402.

The spelling of 409280551 in words is "four hundred nine million, two hundred eighty thousand, five hundred fifty-one".