516247069 has 4 divisors (see below), whose sum is σ = 555958396. Its totient is φ = 476535744.

The previous prime is 516247063. The next prime is 516247111. The reversal of 516247069 is 960742615.

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

It can be written as a sum of positive squares in 2 ways, for example, as 119639844 + 396607225 = 10938^2 + 19915^2 .

It is a cyclic number.

It is not a de Polignac number, because 516247069 - 2⁵ = 516247037 is a prime.

It is a super-2 number, since 2×516247069² = 533022072502181522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516247063) 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, 19855644 + ... + 19855669.

It is an arithmetic number, because the mean of its divisors is an integer number (138989599).

Almost surely, 2^516247069 is an apocalyptic number.

It is an amenable number.

516247069 is a deficient number, since it is larger than the sum of its proper divisors (39711327).

516247069 is a wasteful number, since it uses less digits than its factorization.

516247069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39711326.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 516247069 is about 22721.0710354948. The cubic root of 516247069 is about 802.2059268717.

The spelling of 516247069 in words is "five hundred sixteen million, two hundred forty-seven thousand, sixty-nine".