42524201 has 4 divisors (see below), whose sum is σ = 42542292. Its totient is φ = 42506112.

The previous prime is 42524197. The next prime is 42524203. The reversal of 42524201 is 10242524.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1819801 + 40704400 = 1349^2 + 6380^2 .

It is a cyclic number.

It is not a de Polignac number, because 42524201 - 2² = 42524197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42524203) 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, 4880 + ... + 10433.

It is an arithmetic number, because the mean of its divisors is an integer number (10635573).

Almost surely, 2^42524201 is an apocalyptic number.

It is an amenable number.

42524201 is a deficient number, since it is larger than the sum of its proper divisors (18091).

42524201 is a wasteful number, since it uses less digits than its factorization.

42524201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18090.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42524201 is about 6521.0582730106. The cubic root of 42524201 is about 349.0428296410.

Adding to 42524201 its reverse (10242524), we get a palindrome (52766725).

The spelling of 42524201 in words is "forty-two million, five hundred twenty-four thousand, two hundred one".