42025057 has 4 divisors (see below), whose sum is σ = 43380736. Its totient is φ = 40669380.

The previous prime is 42025001. The next prime is 42025069. The reversal of 42025057 is 75052024.

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 42025057 - 2⁷ = 42024929 is a prime.

It is a super-2 number, since 2×42025057² = 3532210831706498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42025657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677793 + ... + 677854.

It is an arithmetic number, because the mean of its divisors is an integer number (10845184).

Almost surely, 2^42025057 is an apocalyptic number.

It is an amenable number.

42025057 is a deficient number, since it is larger than the sum of its proper divisors (1355679).

42025057 is a wasteful number, since it uses less digits than its factorization.

42025057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355678.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 42025057 is about 6482.6735996809. The cubic root of 42025057 is about 347.6717767779.

The spelling of 42025057 in words is "forty-two million, twenty-five thousand, fifty-seven".