481725639 has 48 divisors (see below), whose sum is σ = 779051520. Its totient is φ = 285405120.

The previous prime is 481725637. The next prime is 481725649. The reversal of 481725639 is 936527184.

481725639 is a `hidden beast` number, since 4 + 8 + 1 + 7 + 2 + 5 + 639 = 666.

It is not a de Polignac number, because 481725639 - 2¹ = 481725637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 481725594 and 481725603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481725637) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 207294 + ... + 209604.

It is an arithmetic number, because the mean of its divisors is an integer number (16230240).

Almost surely, 2^481725639 is an apocalyptic number.

481725639 is a deficient number, since it is larger than the sum of its proper divisors (297325881).

481725639 is a wasteful number, since it uses less digits than its factorization.

481725639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412 (or 2409 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 481725639 is about 21948.2491101227. The cubic root of 481725639 is about 783.9106905547.

The spelling of 481725639 in words is "four hundred eighty-one million, seven hundred twenty-five thousand, six hundred thirty-nine".