521252434 has 8 divisors (see below), whose sum is σ = 800948988. Its totient is φ = 254269440.

The previous prime is 521252423. The next prime is 521252437. The reversal of 521252434 is 434252125.

It can be written as a sum of positive squares in 2 ways, for example, as 516425625 + 4826809 = 22725^2 + 2197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (521252437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3178287 + ... + 3178450.

Almost surely, 2^521252434 is an apocalyptic number.

521252434 is a deficient number, since it is larger than the sum of its proper divisors (279696554).

521252434 is a wasteful number, since it uses less digits than its factorization.

521252434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356780.

The product of its digits is 9600, while the sum is 28.

The square root of 521252434 is about 22830.9534185500. The cubic root of 521252434 is about 804.7902358432.

The spelling of 521252434 in words is "five hundred twenty-one million, two hundred fifty-two thousand, four hundred thirty-four".