409248555 has 16 divisors (see below), whose sum is σ = 655171584. Its totient is φ = 218141280.

The previous prime is 409248533. The next prime is 409248557. The reversal of 409248555 is 555842904.

It is not a de Polignac number, because 409248555 - 2⁵ = 409248523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (409248557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23382 + ... + 36948.

It is an arithmetic number, because the mean of its divisors is an integer number (40948224).

Almost surely, 2^409248555 is an apocalyptic number.

409248555 is a deficient number, since it is larger than the sum of its proper divisors (245923029).

409248555 is a wasteful number, since it uses less digits than its factorization.

409248555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15586.

The product of its (nonzero) digits is 288000, while the sum is 42.

The square root of 409248555 is about 20229.8926097001. The cubic root of 409248555 is about 742.4417485392.

The spelling of 409248555 in words is "four hundred nine million, two hundred forty-eight thousand, five hundred fifty-five".