401353555 has 16 divisors (see below), whose sum is σ = 488759040. Its totient is φ = 316348128.

The previous prime is 401353553. The next prime is 401353567. The reversal of 401353555 is 555353104.

It is a cyclic number.

It is not a de Polignac number, because 401353555 - 2¹ = 401353553 is a prime.

It is a super-2 number, since 2×401353555² = 322169352222276050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401353553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181084 + ... + 183286.

It is an arithmetic number, because the mean of its divisors is an integer number (30547440).

Almost surely, 2^401353555 is an apocalyptic number.

401353555 is a deficient number, since it is larger than the sum of its proper divisors (87405485).

401353555 is a wasteful number, since it uses less digits than its factorization.

401353555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 401353555 is about 20033.8102965961. The cubic root of 401353555 is about 737.6364539241.

The spelling of 401353555 in words is "four hundred one million, three hundred fifty-three thousand, five hundred fifty-five".