401550755 has 12 divisors (see below), whose sum is σ = 490187712. Its totient is φ = 315782160.

The previous prime is 401550749. The next prime is 401550817. The reversal of 401550755 is 557055104.

It is not a de Polignac number, because 401550755 - 2¹² = 401546659 is a prime.

It is a super-2 number, since 2×401550755² = 322486017682140050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5870 + ... + 28940.

It is an arithmetic number, because the mean of its divisors is an integer number (40848976).

Almost surely, 2^401550755 is an apocalyptic number.

401550755 is a deficient number, since it is larger than the sum of its proper divisors (88636957).

401550755 is an equidigital number, since it uses as much as digits as its factorization.

401550755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23194 (or 23135 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 401550755 is about 20038.7313720205. The cubic root of 401550755 is about 737.7572435951.

The spelling of 401550755 in words is "four hundred one million, five hundred fifty thousand, seven hundred fifty-five".