571720052 has 12 divisors (see below), whose sum is σ = 1002028356. Its totient is φ = 285426240.

The previous prime is 571720049. The next prime is 571720087. The reversal of 571720052 is 250027175.

It can be written as a sum of positive squares in 2 ways, for example, as 301577956 + 270142096 = 17366^2 + 16436^2 .

It is a junction number, because it is equal to n+sod(n) for n = 571719997 and 571720024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105473 + ... + 110760.

It is an arithmetic number, because the mean of its divisors is an integer number (83502363).

Almost surely, 2^571720052 is an apocalyptic number.

It is an amenable number.

571720052 is a deficient number, since it is larger than the sum of its proper divisors (430308304).

571720052 is a wasteful number, since it uses less digits than its factorization.

571720052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216898 (or 216896 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 571720052 is about 23910.6681629770. The cubic root of 571720052 is about 829.9676050646.

The spelling of 571720052 in words is "five hundred seventy-one million, seven hundred twenty thousand, fifty-two".