4072072525 has 6 divisors (see below), whose sum is σ = 5049369962. Its totient is φ = 3257658000.

The previous prime is 4072072519. The next prime is 4072072541. The reversal of 4072072525 is 5252702704.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 50737129 + 4021335396 = 7123^2 + 63414^2 .

It is not a de Polignac number, because 4072072525 - 2³ = 4072072517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 81441426 + ... + 81441475.

Almost surely, 2^4072072525 is an apocalyptic number.

It is an amenable number.

4072072525 is a deficient number, since it is larger than the sum of its proper divisors (977297437).

4072072525 is a wasteful number, since it uses less digits than its factorization.

4072072525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162882911 (or 162882906 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 4072072525 is about 63812.7928005036. The cubic root of 4072072525 is about 1596.8783569105.

The spelling of 4072072525 in words is "four billion, seventy-two million, seventy-two thousand, five hundred twenty-five".