42325251 has 4 divisors (see below), whose sum is σ = 56433672. Its totient is φ = 28216832.

The previous prime is 42325249. The next prime is 42325259. The reversal of 42325251 is 15252324.

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 42325251 - 2¹ = 42325249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42325259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7054206 + ... + 7054211.

It is an arithmetic number, because the mean of its divisors is an integer number (14108418).

Almost surely, 2^42325251 is an apocalyptic number.

42325251 is a deficient number, since it is larger than the sum of its proper divisors (14108421).

42325251 is a wasteful number, since it uses less digits than its factorization.

42325251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14108420.

The product of its digits is 2400, while the sum is 24.

The square root of 42325251 is about 6505.7859632791. The cubic root of 42325251 is about 348.4976448061.

Adding to 42325251 its reverse (15252324), we get a palindrome (57577575).

The spelling of 42325251 in words is "forty-two million, three hundred twenty-five thousand, two hundred fifty-one".