489540551 has 8 divisors (see below), whose sum is σ = 519676560. Its totient is φ = 459553408.

The previous prime is 489540547. The next prime is 489540553. The reversal of 489540551 is 155045984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 489540551 - 2² = 489540547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489540499 and 489540508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489540553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30401 + ... + 43626.

It is an arithmetic number, because the mean of its divisors is an integer number (64959570).

Almost surely, 2^489540551 is an apocalyptic number.

489540551 is a deficient number, since it is larger than the sum of its proper divisors (30136009).

489540551 is a wasteful number, since it uses less digits than its factorization.

489540551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74433.

The product of its (nonzero) digits is 144000, while the sum is 41.

The square root of 489540551 is about 22125.5632922644. The cubic root of 489540551 is about 788.1270328453.

The spelling of 489540551 in words is "four hundred eighty-nine million, five hundred forty thousand, five hundred fifty-one".