521042152 has 32 divisors (see below), whose sum is σ = 997936200. Its totient is φ = 254951424.

The previous prime is 521042147. The next prime is 521042153. The reversal of 521042152 is 251240125.

It can be written as a sum of positive squares in 4 ways, for example, as 452583076 + 68459076 = 21274^2 + 8274^2 .

It is a super-2 number, since 2×521042152² = 542969848321582208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (521042153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192424 + ... + 195112.

Almost surely, 2^521042152 is an apocalyptic number.

It is an amenable number.

521042152 is a deficient number, since it is larger than the sum of its proper divisors (476894048).

521042152 is a wasteful number, since it uses less digits than its factorization.

521042152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205 (or 3201 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 521042152 is about 22826.3477586757. The cubic root of 521042152 is about 804.6819993141.

Adding to 521042152 its reverse (251240125), we get a palindrome (772282277).

The spelling of 521042152 in words is "five hundred twenty-one million, forty-two thousand, one hundred fifty-two".