223555401 has 6 divisors (see below), whose sum is σ = 322913370. Its totient is φ = 149036928.

The previous prime is 223555399. The next prime is 223555417. The reversal of 223555401 is 104555322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 116122176 + 107433225 = 10776^2 + 10365^2 .

It is not a de Polignac number, because 223555401 - 2¹ = 223555399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223555441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12419736 + ... + 12419753.

It is an arithmetic number, because the mean of its divisors is an integer number (53818895).

Almost surely, 2^223555401 is an apocalyptic number.

It is an amenable number.

223555401 is a deficient number, since it is larger than the sum of its proper divisors (99357969).

223555401 is a wasteful number, since it uses less digits than its factorization.

223555401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24839495 (or 24839492 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 223555401 is about 14951.7691595343. The cubic root of 223555401 is about 606.9157233582.

The spelling of 223555401 in words is "two hundred twenty-three million, five hundred fifty-five thousand, four hundred one".