4581479925 has 144 divisors (see below), whose sum is σ = 9317308416. Its totient is φ = 2131920000.

The previous prime is 4581479911. The next prime is 4581479951. The reversal of 4581479925 is 5299741854.

It is a happy number.

4581479925 is a `hidden beast` number, since 4 + 5 + 81 + 479 + 92 + 5 = 666.

It is not a de Polignac number, because 4581479925 - 2⁴ = 4581479909 is a prime.

It is a congruent number.

It is an unprimeable number.

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 143 ways as a sum of consecutive naturals, for example, 16188834 + ... + 16189116.

Almost surely, 2^4581479925 is an apocalyptic number.

4581479925 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4581479925 is an abundant number, since it is smaller than the sum of its proper divisors (4735828491).

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

4581479925 is a wasteful number, since it uses less digits than its factorization.

4581479925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 544 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 4581479925 is about 67686.6303268230. The cubic root of 4581479925 is about 1660.8685546398.

The spelling of 4581479925 in words is "four billion, five hundred eighty-one million, four hundred seventy-nine thousand, nine hundred twenty-five".