4028010725 has 18 divisors (see below), whose sum is σ = 5012131026. Its totient is φ = 3211218400.

The previous prime is 4028010703. The next prime is 4028010737. The reversal of 4028010725 is 5270108204.

It can be written as a sum of positive squares in 3 ways, for example, as 70845889 + 3957164836 = 8417^2 + 62906^2 .

It is not a de Polignac number, because 4028010725 - 2²² = 4023816421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4905815 + ... + 4906635.

Almost surely, 2^4028010725 is an apocalyptic number.

It is an amenable number.

4028010725 is a deficient number, since it is larger than the sum of its proper divisors (984120301).

4028010725 is an frugal number, since it uses more digits than its factorization.

4028010725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 4028010725 is about 63466.6111037922. The cubic root of 4028010725 is about 1591.0977908491.

Adding to 4028010725 its reverse (5270108204), we get a palindrome (9298118929).

The spelling of 4028010725 in words is "four billion, twenty-eight million, ten thousand, seven hundred twenty-five".