521112364 has 12 divisors (see below), whose sum is σ = 912811984. Its totient is φ = 260308944.

The previous prime is 521112353. The next prime is 521112379. The reversal of 521112364 is 463211125.

It is a happy 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, 57027 + ... + 65530.

Almost surely, 2^521112364 is an apocalyptic number.

It is an amenable number.

521112364 is a deficient number, since it is larger than the sum of its proper divisors (391699620).

521112364 is a wasteful number, since it uses less digits than its factorization.

521112364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123624 (or 123622 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 521112364 is about 22827.8856664388. The cubic root of 521112364 is about 804.7181421321.

Adding to 521112364 its reverse (463211125), we get a palindrome (984323489).

The spelling of 521112364 in words is "five hundred twenty-one million, one hundred twelve thousand, three hundred sixty-four".