42025133 has 4 divisors (see below), whose sum is σ = 42433248. Its totient is φ = 41617020.

The previous prime is 42025129. The next prime is 42025187. The reversal of 42025133 is 33152024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42025133 - 2² = 42025129 is a prime.

It is a super-2 number, since 2×42025133² = 3532223607335378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42025433) 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, 203903 + ... + 204108.

It is an arithmetic number, because the mean of its divisors is an integer number (10608312).

Almost surely, 2^42025133 is an apocalyptic number.

It is an amenable number.

42025133 is a deficient number, since it is larger than the sum of its proper divisors (408115).

42025133 is a wasteful number, since it uses less digits than its factorization.

42025133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408114.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 42025133 is about 6482.6794614573. The cubic root of 42025133 is about 347.6719863595.

Adding to 42025133 its reverse (33152024), we get a palindrome (75177157).

The spelling of 42025133 in words is "forty-two million, twenty-five thousand, one hundred thirty-three".