42025511 has 16 divisors (see below), whose sum is σ = 48522240. Its totient is φ = 35997120.

The previous prime is 42025499. The next prime is 42025519. The reversal of 42025511 is 11552024.

It is a cyclic number.

It is not a de Polignac number, because 42025511 - 2⁶ = 42025447 is a prime.

It is a super-2 number, since 2×42025511² = 3532287149622242, 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 (42025519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48266 + ... + 49128.

It is an arithmetic number, because the mean of its divisors is an integer number (3032640).

Almost surely, 2^42025511 is an apocalyptic number.

42025511 is a deficient number, since it is larger than the sum of its proper divisors (6496729).

42025511 is a wasteful number, since it uses less digits than its factorization.

42025511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 42025511 is about 6482.7086160030. The cubic root of 42025511 is about 347.6730287486.

Adding to 42025511 its reverse (11552024), we get a palindrome (53577535).

The spelling of 42025511 in words is "forty-two million, twenty-five thousand, five hundred eleven".