232028551 has 4 divisors (see below), whose sum is σ = 244240600. Its totient is φ = 219816504.

The previous prime is 232028549. The next prime is 232028561. The reversal of 232028551 is 155820232.

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

It is a cyclic number.

It is not a de Polignac number, because 232028551 - 2¹ = 232028549 is a prime.

It is a super-3 number, since 3×232028551³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232028561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6105996 + ... + 6106033.

It is an arithmetic number, because the mean of its divisors is an integer number (61060150).

Almost surely, 2^232028551 is an apocalyptic number.

232028551 is a deficient number, since it is larger than the sum of its proper divisors (12212049).

232028551 is a wasteful number, since it uses less digits than its factorization.

232028551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12212048.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 232028551 is about 15232.4834153857. The cubic root of 232028551 is about 614.4885703440.

Adding to 232028551 its reverse (155820232), we get a palindrome (387848783).

The spelling of 232028551 in words is "two hundred thirty-two million, twenty-eight thousand, five hundred fifty-one".