516091049 has 8 divisors (see below), whose sum is σ = 555408648. Its totient is φ = 477768960.

The previous prime is 516091003. The next prime is 516091057. The reversal of 516091049 is 940190615.

It can be written as a sum of positive squares in 4 ways, for example, as 3385600 + 512705449 = 1840^2 + 22643^2 .

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 516091049 - 2²⁴ = 499313833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516091949) 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, 247802 + ... + 249875.

It is an arithmetic number, because the mean of its divisors is an integer number (69426081).

Almost surely, 2^516091049 is an apocalyptic number.

It is an amenable number.

516091049 is a deficient number, since it is larger than the sum of its proper divisors (39317599).

516091049 is a wasteful number, since it uses less digits than its factorization.

516091049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497755.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 516091049 is about 22717.6373991663. The cubic root of 516091049 is about 802.1251046020.

The spelling of 516091049 in words is "five hundred sixteen million, ninety-one thousand, forty-nine".