571780545 has 16 divisors (see below), whose sum is σ = 1045541760. Its totient is φ = 261385344.

The previous prime is 571780541. The next prime is 571780553. The reversal of 571780545 is 545087175.

It is not a de Polignac number, because 571780545 - 2² = 571780541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 571780497 and 571780506.

It is not an unprimeable number, because it can be changed into a prime (571780541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2722660 + ... + 2722869.

It is an arithmetic number, because the mean of its divisors is an integer number (65346360).

Almost surely, 2^571780545 is an apocalyptic number.

It is an amenable number.

571780545 is a deficient number, since it is larger than the sum of its proper divisors (473761215).

571780545 is a wasteful number, since it uses less digits than its factorization.

571780545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5445544.

The product of its (nonzero) digits is 196000, while the sum is 42.

The square root of 571780545 is about 23911.9331088057. The cubic root of 571780545 is about 829.9968766515.

The spelling of 571780545 in words is "five hundred seventy-one million, seven hundred eighty thousand, five hundred forty-five".