521053451 has 8 divisors (see below), whose sum is σ = 559475424. Its totient is φ = 483495040.

The previous prime is 521053391. The next prime is 521053457. The reversal of 521053451 is 154350125.

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 521053451 - 2¹⁴ = 521037067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 521053451.

It is not an unprimeable number, because it can be changed into a prime (521053457) 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, 214640 + ... + 217053.

It is an arithmetic number, because the mean of its divisors is an integer number (69934428).

Almost surely, 2^521053451 is an apocalyptic number.

521053451 is a deficient number, since it is larger than the sum of its proper divisors (38421973).

521053451 is a wasteful number, since it uses less digits than its factorization.

521053451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431781.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 521053451 is about 22826.5952564109. The cubic root of 521053451 is about 804.6878158853.

The spelling of 521053451 in words is "five hundred twenty-one million, fifty-three thousand, four hundred fifty-one".