4025771520 has 80 divisors (see below), whose sum is σ = 12869912880. Its totient is φ = 1073537024.

The previous prime is 4025771429. The next prime is 4025771527. The reversal of 4025771520 is 251775204.

4025771520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×4025771520² = 32413672662486220800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025771527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254415 + ... + 269774.

It is an arithmetic number, because the mean of its divisors is an integer number (160873911).

Almost surely, 2^4025771520 is an apocalyptic number.

4025771520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4025771520 is an abundant number, since it is smaller than the sum of its proper divisors (8844141360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4025771520 is an equidigital number, since it uses as much as digits as its factorization.

4025771520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524215 (or 524199 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 4025771520 is about 63448.9678403045. The cubic root of 4025771520 is about 1590.8029013224.

The spelling of 4025771520 in words is "four billion, twenty-five million, seven hundred seventy-one thousand, five hundred twenty".