223252551 has 16 divisors (see below), whose sum is σ = 350200800. Its totient is φ = 140079744.

The previous prime is 223252541. The next prime is 223252567. The reversal of 223252551 is 155252322.

It is not a de Polignac number, because 223252551 - 2⁹ = 223252039 is a prime.

It is a super-3 number, since 3×223252551³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223252541) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 242736 + ... + 243653.

It is an arithmetic number, because the mean of its divisors is an integer number (21887550).

Almost surely, 2^223252551 is an apocalyptic number.

223252551 is a deficient number, since it is larger than the sum of its proper divisors (126948249).

223252551 is a wasteful number, since it uses less digits than its factorization.

223252551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486415 (or 486409 counting only the distinct ones).

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

The square root of 223252551 is about 14941.6381632002. The cubic root of 223252551 is about 606.6415370516.

The spelling of 223252551 in words is "two hundred twenty-three million, two hundred fifty-two thousand, five hundred fifty-one".