516261651 has 4 divisors (see below), whose sum is σ = 688348872. Its totient is φ = 344174432.

The previous prime is 516261617. The next prime is 516261653. The reversal of 516261651 is 156162615.

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 516261651 - 2¹³ = 516253459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516261653) 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, 86043606 + ... + 86043611.

It is an arithmetic number, because the mean of its divisors is an integer number (172087218).

Almost surely, 2^516261651 is an apocalyptic number.

516261651 is a deficient number, since it is larger than the sum of its proper divisors (172087221).

516261651 is a wasteful number, since it uses less digits than its factorization.

516261651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172087220.

The product of its digits is 10800, while the sum is 33.

The square root of 516261651 is about 22721.3919247919. The cubic root of 516261651 is about 802.2134798810.

The spelling of 516261651 in words is "five hundred sixteen million, two hundred sixty-one thousand, six hundred fifty-one".