528125242 has 4 divisors (see below), whose sum is σ = 792187866. Its totient is φ = 264062620.

The previous prime is 528125237. The next prime is 528125243. The reversal of 528125242 is 242521825.

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

It can be written as a sum of positive squares in only one way, i.e., 264420121 + 263705121 = 16261^2 + 16239^2 .

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 not an unprimeable number, because it can be changed into a prime (528125243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132031309 + ... + 132031312.

Almost surely, 2^528125242 is an apocalyptic number.

528125242 is a deficient number, since it is larger than the sum of its proper divisors (264062624).

528125242 is a wasteful number, since it uses less digits than its factorization.

528125242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264062623.

The product of its digits is 12800, while the sum is 31.

The square root of 528125242 is about 22980.9756537881. The cubic root of 528125242 is about 808.3119047519.

The spelling of 528125242 in words is "five hundred twenty-eight million, one hundred twenty-five thousand, two hundred forty-two".