52026521 has 2 divisors, whose sum is σ = 52026522. Its totient is φ = 52026520.

The previous prime is 52026497. The next prime is 52026553. The reversal of 52026521 is 12562025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40500496 + 11526025 = 6364^2 + 3395^2 .

It is a cyclic number.

It is not a de Polignac number, because 52026521 - 2²² = 47832217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52026421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26013260 + 26013261.

It is an arithmetic number, because the mean of its divisors is an integer number (26013261).

Almost surely, 2^52026521 is an apocalyptic number.

It is an amenable number.

52026521 is a deficient number, since it is larger than the sum of its proper divisors (1).

52026521 is an equidigital number, since it uses as much as digits as its factorization.

52026521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 52026521 is about 7212.9412170071. The cubic root of 52026521 is about 373.3145599793.

Adding to 52026521 its reverse (12562025), we get a palindrome (64588546).

The spelling of 52026521 in words is "fifty-two million, twenty-six thousand, five hundred twenty-one".