42512201 has 8 divisors (see below), whose sum is σ = 43411464. Its totient is φ = 41616640.

The previous prime is 42512167. The next prime is 42512219. The reversal of 42512201 is 10221524.

It can be written as a sum of positive squares in 4 ways, for example, as 15721225 + 26790976 = 3965^2 + 5176^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42512201 - 2⁶ = 42512137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42512201.

It is not an unprimeable number, because it can be changed into a prime (42512401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43025 + ... + 44001.

It is an arithmetic number, because the mean of its divisors is an integer number (5426433).

Almost surely, 2^42512201 is an apocalyptic number.

It is an amenable number.

42512201 is a deficient number, since it is larger than the sum of its proper divisors (899263).

42512201 is an equidigital number, since it uses as much as digits as its factorization.

42512201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42512201 is about 6520.1381120341. The cubic root of 42512201 is about 349.0099941583.

Adding to 42512201 its reverse (10221524), we get a palindrome (52733725).

The spelling of 42512201 in words is "forty-two million, five hundred twelve thousand, two hundred one".