521225435 has 8 divisors (see below), whose sum is σ = 627123120. Its totient is φ = 415878624.

The previous prime is 521225407. The next prime is 521225459. The reversal of 521225435 is 534522125.

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

It is a cyclic number.

It is not a de Polignac number, because 521225435 - 2⁶ = 521225371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 521225398 and 521225407.

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, 135632 + ... + 139421.

It is an arithmetic number, because the mean of its divisors is an integer number (78390390).

Almost surely, 2^521225435 is an apocalyptic number.

521225435 is a deficient number, since it is larger than the sum of its proper divisors (105897685).

521225435 is a wasteful number, since it uses less digits than its factorization.

521225435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275437.

The product of its digits is 12000, while the sum is 29.

The square root of 521225435 is about 22830.3621302861. The cubic root of 521225435 is about 804.7763405240.

The spelling of 521225435 in words is "five hundred twenty-one million, two hundred twenty-five thousand, four hundred thirty-five".