4524855921 has 24 divisors (see below), whose sum is σ = 6641541504. Its totient is φ = 2967924960.

The previous prime is 4524855869. The next prime is 4524855931. The reversal of 4524855921 is 1295584254.

4524855921 is a `hidden beast` number, since 4 + 52 + 4 + 8 + 5 + 592 + 1 = 666.

It is not a de Polignac number, because 4524855921 - 2⁷ = 4524855793 is a prime.

It is a super-2 number, since 2×4524855921² = 40948642211617516482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4524855931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545215 + ... + 553451.

It is an arithmetic number, because the mean of its divisors is an integer number (276730896).

Almost surely, 2^4524855921 is an apocalyptic number.

It is an amenable number.

4524855921 is a deficient number, since it is larger than the sum of its proper divisors (2116685583).

4524855921 is a wasteful number, since it uses less digits than its factorization.

4524855921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9221 (or 9218 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 4524855921 is about 67267.0492960707. The cubic root of 4524855921 is about 1653.9977649940.

The spelling of 4524855921 in words is "four billion, five hundred twenty-four million, eight hundred fifty-five thousand, nine hundred twenty-one".