42025051 has 4 divisors (see below), whose sum is σ = 42737400. Its totient is φ = 41312704.

The previous prime is 42025001. The next prime is 42025069. The reversal of 42025051 is 15052024.

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

It is a cyclic number.

It is not a de Polignac number, because 42025051 - 2⁹ = 42024539 is a prime.

It is a super-2 number, since 2×42025051² = 3532209823105202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42025001) 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, 356086 + ... + 356203.

It is an arithmetic number, because the mean of its divisors is an integer number (10684350).

Almost surely, 2^42025051 is an apocalyptic number.

42025051 is a deficient number, since it is larger than the sum of its proper divisors (712349).

42025051 is an equidigital number, since it uses as much as digits as its factorization.

42025051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712348.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 42025051 is about 6482.6731369089. The cubic root of 42025051 is about 347.6717602320.

Adding to 42025051 its reverse (15052024), we get a palindrome (57077075).

The spelling of 42025051 in words is "forty-two million, twenty-five thousand, fifty-one".