223894967425 has 12 divisors (see below), whose sum is σ = 277636801660. Its totient is φ = 179111430720.

The previous prime is 223894967411. The next prime is 223894967473. The reversal of 223894967425 is 524769498322.

It can be written as a sum of positive squares in 6 ways, for example, as 15748242064 + 208146725361 = 125492^2 + 456231^2 .

It is not a de Polignac number, because 223894967425 - 2²¹ = 223892870273 is a prime.

It is a super-2 number, since 2×223894967425² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1181131 + ... + 1357519.

Almost surely, 2^223894967425 is an apocalyptic number.

223894967425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223894967425 is a deficient number, since it is larger than the sum of its proper divisors (53741834235).

223894967425 is a wasteful number, since it uses less digits than its factorization.

223894967425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227172 (or 227167 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 61.

The spelling of 223894967425 in words is "two hundred twenty-three billion, eight hundred ninety-four million, nine hundred sixty-seven thousand, four hundred twenty-five".