489290551 has 4 divisors (see below), whose sum is σ = 489335704. Its totient is φ = 489245400.

The previous prime is 489290533. The next prime is 489290573. The reversal of 489290551 is 155092984.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(489290551) divides (489290551-1)³.

It is a cyclic number.

It is not a de Polignac number, because 489290551 - 2⁵ = 489290519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489290498 and 489290507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489290251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4516 + ... + 31606.

It is an arithmetic number, because the mean of its divisors is an integer number (122333926).

Almost surely, 2^489290551 is an apocalyptic number.

489290551 is the 18061-st pentagonal number.

489290551 is a deficient number, since it is larger than the sum of its proper divisors (45153).

489290551 is a wasteful number, since it uses less digits than its factorization.

489290551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45152.

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 489290551 is about 22119.9129971164. The cubic root of 489290551 is about 787.9928489950.

The spelling of 489290551 in words is "four hundred eighty-nine million, two hundred ninety thousand, five hundred fifty-one".