4425061581 has 24 divisors (see below), whose sum is σ = 6539247936. Its totient is φ = 2882705280.

The previous prime is 4425061561. The next prime is 4425061691. The reversal of 4425061581 is 1851605244.

It is a happy number.

4425061581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4425061581 - 2⁵ = 4425061549 is a prime.

It is a super-2 number, since 2×4425061581² = 39162339991284439122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4425061561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41566 + ... + 102848.

It is an arithmetic number, because the mean of its divisors is an integer number (272468664).

Almost surely, 2^4425061581 is an apocalyptic number.

It is an amenable number.

4425061581 is a deficient number, since it is larger than the sum of its proper divisors (2114186355).

4425061581 is a wasteful number, since it uses less digits than its factorization.

4425061581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61473 (or 61470 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 4425061581 is about 66521.1363477805. The cubic root of 4425061581 is about 1641.7477873091.

The spelling of 4425061581 in words is "four billion, four hundred twenty-five million, sixty-one thousand, five hundred eighty-one".