4020770725 has 12 divisors (see below), whose sum is σ = 5279036004. Its totient is φ = 3027403520.

The previous prime is 4020770693. The next prime is 4020770729. The reversal of 4020770725 is 5270770204.

It can be written as a sum of positive squares in 6 ways, for example, as 97752769 + 3923017956 = 9887^2 + 62634^2 .

It is not a de Polignac number, because 4020770725 - 2⁵ = 4020770693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020770729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4729894 + ... + 4730743.

It is an arithmetic number, because the mean of its divisors is an integer number (439919667).

Almost surely, 2^4020770725 is an apocalyptic number.

It is an amenable number.

4020770725 is a deficient number, since it is larger than the sum of its proper divisors (1258265279).

4020770725 is a wasteful number, since it uses less digits than its factorization.

4020770725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460664 (or 9460659 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 4020770725 is about 63409.5475855174. The cubic root of 4020770725 is about 1590.1439323575.

The spelling of 4020770725 in words is "four billion, twenty million, seven hundred seventy thousand, seven hundred twenty-five".