401224753585 has 4 divisors (see below), whose sum is σ = 481469704308. Its totient is φ = 320979802864.

The previous prime is 401224753561. The next prime is 401224753591. The reversal of 401224753585 is 585357422104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81868660129 + 319356093456 = 286127^2 + 565116^2 .

It is a cyclic number.

It is not a de Polignac number, because 401224753585 - 2²¹ = 401222656433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40122475354 + ... + 40122475363.

It is an arithmetic number, because the mean of its divisors is an integer number (120367426077).

Almost surely, 2^401224753585 is an apocalyptic number.

It is an amenable number.

401224753585 is a deficient number, since it is larger than the sum of its proper divisors (80244950723).

401224753585 is an equidigital number, since it uses as much as digits as its factorization.

401224753585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80244950722.

The product of its (nonzero) digits is 1344000, while the sum is 46.

The spelling of 401224753585 in words is "four hundred one billion, two hundred twenty-four million, seven hundred fifty-three thousand, five hundred eighty-five".