528152421 has 8 divisors (see below), whose sum is σ = 704312064. Its totient is φ = 352047200.

The previous prime is 528152419. The next prime is 528152453. The reversal of 528152421 is 124251825.

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 528152421 - 2¹ = 528152419 is a prime.

It is a super-2 number, since 2×528152421² = 557889959616322482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528152461) 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, 23500 + ... + 40106.

It is an arithmetic number, because the mean of its divisors is an integer number (88039008).

Almost surely, 2^528152421 is an apocalyptic number.

It is an amenable number.

528152421 is a deficient number, since it is larger than the sum of its proper divisors (176159643).

528152421 is a wasteful number, since it uses less digits than its factorization.

528152421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27211.

The product of its digits is 6400, while the sum is 30.

The square root of 528152421 is about 22981.5669831280. The cubic root of 528152421 is about 808.3257706122.

The spelling of 528152421 in words is "five hundred twenty-eight million, one hundred fifty-two thousand, four hundred twenty-one".