487117251 has 12 divisors (see below), whose sum is σ = 704332512. Its totient is φ = 324413136.

The previous prime is 487117217. The next prime is 487117261. The reversal of 487117251 is 152711784.

487117251 is a `hidden beast` number, since 487 + 1 + 172 + 5 + 1 = 666.

It is not a de Polignac number, because 487117251 - 2¹³ = 487109059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487117261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18171 + ... + 36116.

It is an arithmetic number, because the mean of its divisors is an integer number (58694376).

Almost surely, 2^487117251 is an apocalyptic number.

487117251 is a deficient number, since it is larger than the sum of its proper divisors (217215261).

487117251 is a wasteful number, since it uses less digits than its factorization.

487117251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55290 (or 55287 counting only the distinct ones).

The product of its digits is 15680, while the sum is 36.

The square root of 487117251 is about 22070.7329058190. The cubic root of 487117251 is about 786.8244316551.

It can be divided in two parts, 4871 and 17251, that added together give a palindrome (22122).

The spelling of 487117251 in words is "four hundred eighty-seven million, one hundred seventeen thousand, two hundred fifty-one".