521412052 has 24 divisors (see below), whose sum is σ = 1043360640. Its totient is φ = 223347360.

The previous prime is 521412043. The next prime is 521412121. The reversal of 521412052 is 250214125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72474 + ... + 79342.

It is an arithmetic number, because the mean of its divisors is an integer number (43473360).

Almost surely, 2^521412052 is an apocalyptic number.

It is an amenable number.

521412052 is an abundant number, since it is smaller than the sum of its proper divisors (521948588).

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

521412052 is a wasteful number, since it uses less digits than its factorization.

521412052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9591 (or 9589 counting only the distinct ones).

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

The square root of 521412052 is about 22834.4488000039. The cubic root of 521412052 is about 804.8723751225.

Adding to 521412052 its reverse (250214125), we get a palindrome (771626177).

The spelling of 521412052 in words is "five hundred twenty-one million, four hundred twelve thousand, fifty-two".