516642772 has 12 divisors (see below), whose sum is σ = 935301780. Its totient is φ = 249413696.

The previous prime is 516642761. The next prime is 516642773. The reversal of 516642772 is 277246615.

It can be written as a sum of positive squares in 2 ways, for example, as 361988676 + 154654096 = 19026^2 + 12436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516642773) 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, 2226793 + ... + 2227024.

It is an arithmetic number, because the mean of its divisors is an integer number (77941815).

Almost surely, 2^516642772 is an apocalyptic number.

It is an amenable number.

516642772 is a deficient number, since it is larger than the sum of its proper divisors (418659008).

516642772 is a wasteful number, since it uses less digits than its factorization.

516642772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453850 (or 4453848 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 516642772 is about 22729.7772096429. Note that the first 3 decimals coincide. The cubic root of 516642772 is about 802.4108379442.

The spelling of 516642772 in words is "five hundred sixteen million, six hundred forty-two thousand, seven hundred seventy-two".