500661151 has 4 divisors (see below), whose sum is σ = 500873632. Its totient is φ = 500448672.

The previous prime is 500661149. The next prime is 500661163. The reversal of 500661151 is 151166005.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 500661151 - 2¹ = 500661149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500661131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102666 + ... + 107431.

It is an arithmetic number, because the mean of its divisors is an integer number (125218408).

Almost surely, 2^500661151 is an apocalyptic number.

500661151 is a deficient number, since it is larger than the sum of its proper divisors (212481).

500661151 is a wasteful number, since it uses less digits than its factorization.

500661151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212480.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 500661151 is about 22375.4586768629. The cubic root of 500661151 is about 794.0502091647.

The spelling of 500661151 in words is "five hundred million, six hundred sixty-one thousand, one hundred fifty-one".