487581525 has 90 divisors (see below), whose sum is σ = 931260770. Its totient is φ = 252175680.

The previous prime is 487581517. The next prime is 487581569. The reversal of 487581525 is 525185784.

487581525 is a `hidden beast` number, since 48 + 7 + 5 + 81 + 525 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 57972996 + 429608529 = 7614^2 + 20727^2 .

It is not a de Polignac number, because 487581525 - 2³ = 487581517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 4473171 + ... + 4473279.

Almost surely, 2^487581525 is an apocalyptic number.

487581525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

487581525 is a deficient number, since it is larger than the sum of its proper divisors (443679245).

487581525 is a wasteful number, since it uses less digits than its factorization.

487581525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 164 counting only the distinct ones).

The product of its digits is 448000, while the sum is 45.

The square root of 487581525 is about 22081.2482663458. The cubic root of 487581525 is about 787.0743277734.

The spelling of 487581525 in words is "four hundred eighty-seven million, five hundred eighty-one thousand, five hundred twenty-five".