4051855520 has 24 divisors (see below), whose sum is σ = 9572509044. Its totient is φ = 1620742144.

The previous prime is 4051855439. The next prime is 4051855523. The reversal of 4051855520 is 255581504.

It can be written as a sum of positive squares in 2 ways, for example, as 3775365136 + 276490384 = 61444^2 + 16628^2 .

It is not an unprimeable number, because it can be changed into a prime (4051855523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12661889 + ... + 12662208.

Almost surely, 2^4051855520 is an apocalyptic number.

4051855520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4051855520 is an abundant number, since it is smaller than the sum of its proper divisors (5520653524).

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

4051855520 is a wasteful number, since it uses less digits than its factorization.

4051855520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25324112 (or 25324104 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 35.

The square root of 4051855520 is about 63654.1869793339. The cubic root of 4051855520 is about 1594.2312467589.

The spelling of 4051855520 in words is "four billion, fifty-one million, eight hundred fifty-five thousand, five hundred twenty".