232542551 has 4 divisors (see below), whose sum is σ = 232625400. Its totient is φ = 232459704.

The previous prime is 232542547. The next prime is 232542571. The reversal of 232542551 is 155245232.

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 232542551 - 2² = 232542547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232542571) 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, 37061 + ... + 42878.

It is an arithmetic number, because the mean of its divisors is an integer number (58156350).

Almost surely, 2^232542551 is an apocalyptic number.

232542551 is a deficient number, since it is larger than the sum of its proper divisors (82849).

232542551 is an equidigital number, since it uses as much as digits as its factorization.

232542551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82848.

The product of its digits is 12000, while the sum is 29.

The square root of 232542551 is about 15249.3459203993. The cubic root of 232542551 is about 614.9419832023.

Adding to 232542551 its reverse (155245232), we get a palindrome (387787783).

The spelling of 232542551 in words is "two hundred thirty-two million, five hundred forty-two thousand, five hundred fifty-one".