4025545042 has 8 divisors (see below), whose sum is σ = 6246535500. Its totient is φ = 1943366544.

The previous prime is 4025545033. The next prime is 4025545049. The reversal of 4025545042 is 2405455204.

It can be written as a sum of positive squares in 2 ways, for example, as 3689226121 + 336318921 = 60739^2 + 18339^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 4025544995 and 4025545013.

It is not an unprimeable number, because it can be changed into a prime (4025545049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34702917 + ... + 34703032.

Almost surely, 2^4025545042 is an apocalyptic number.

4025545042 is a deficient number, since it is larger than the sum of its proper divisors (2220990458).

4025545042 is a wasteful number, since it uses less digits than its factorization.

4025545042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69405980.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 4025545042 is about 63447.1830895588. The cubic root of 4025545042 is about 1590.7730694741.

The spelling of 4025545042 in words is "four billion, twenty-five million, five hundred forty-five thousand, forty-two".