223038537881 has 8 divisors (see below), whose sum is σ = 237077361000. Its totient is φ = 209101815808.

The previous prime is 223038537871. The next prime is 223038537889. The reversal of 223038537881 is 188735830322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 184606856281 + 38431681600 = 429659^2 + 196040^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223038537881 - 2¹⁰ = 223038536857 is a prime.

It is a super-2 number, since 2×223038537881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (223038537889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25520756 + ... + 25529493.

It is an arithmetic number, because the mean of its divisors is an integer number (29634670125).

Almost surely, 2^223038537881 is an apocalyptic number.

It is an amenable number.

223038537881 is a deficient number, since it is larger than the sum of its proper divisors (14038823119).

223038537881 is a wasteful number, since it uses less digits than its factorization.

223038537881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51050523.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 223038537881 in words is "two hundred twenty-three billion, thirty-eight million, five hundred thirty-seven thousand, eight hundred eighty-one".