575521020 has 72 divisors (see below), whose sum is σ = 1837639440. Its totient is φ = 145393920.

The previous prime is 575520991. The next prime is 575521057. The reversal of 575521020 is 20125575.

It is a happy number.

575521020 is a `hidden beast` number, since 5 + 7 + 552 + 102 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80721 + ... + 87560.

It is an arithmetic number, because the mean of its divisors is an integer number (25522770).

Almost surely, 2^575521020 is an apocalyptic number.

It is an amenable number.

575521020 is an abundant number, since it is smaller than the sum of its proper divisors (1262118420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

575521020 is a wasteful number, since it uses less digits than its factorization.

575521020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168315 (or 168310 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 575521020 is about 23990.0191746484. The cubic root of 575521020 is about 831.8028359698.

Adding to 575521020 its reverse (20125575), we get a palindrome (595646595).

The spelling of 575521020 in words is "five hundred seventy-five million, five hundred twenty-one thousand, twenty".