52821523 has 2 divisors, whose sum is σ = 52821524. Its totient is φ = 52821522.

The previous prime is 52821521. The next prime is 52821541. The reversal of 52821523 is 32512825.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52821523 - 2¹ = 52821521 is a prime.

It is a super-2 number, since 2×52821523² = 5580226584079058, which contains 22 as substring.

Together with 52821521, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 52821491 and 52821500.

It is not a weakly prime, because it can be changed into another prime (52821521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26410761 + 26410762.

It is an arithmetic number, because the mean of its divisors is an integer number (26410762).

Almost surely, 2^52821523 is an apocalyptic number.

52821523 is a deficient number, since it is larger than the sum of its proper divisors (1).

52821523 is an equidigital number, since it uses as much as digits as its factorization.

52821523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 28.

The square root of 52821523 is about 7267.8417016333. The cubic root of 52821523 is about 375.2064593483.

The spelling of 52821523 in words is "fifty-two million, eight hundred twenty-one thousand, five hundred twenty-three".