223526542 has 4 divisors (see below), whose sum is σ = 335289816. Its totient is φ = 111763270.

The previous prime is 223526497. The next prime is 223526549. The reversal of 223526542 is 245625322.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×223526542² = 99928229956955528, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223526549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55881634 + ... + 55881637.

It is an arithmetic number, because the mean of its divisors is an integer number (83822454).

Almost surely, 2^223526542 is an apocalyptic number.

223526542 is a deficient number, since it is larger than the sum of its proper divisors (111763274).

223526542 is a wasteful number, since it uses less digits than its factorization.

223526542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111763273.

The product of its digits is 28800, while the sum is 31.

The square root of 223526542 is about 14950.8040586451. The cubic root of 223526542 is about 606.8896064397.

The spelling of 223526542 in words is "two hundred twenty-three million, five hundred twenty-six thousand, five hundred forty-two".