52621313 has 2 divisors, whose sum is σ = 52621314. Its totient is φ = 52621312.

The previous prime is 52621301. The next prime is 52621321. The reversal of 52621313 is 31312625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48553024 + 4068289 = 6968^2 + 2017^2 .

It is a cyclic number.

It is not a de Polignac number, because 52621313 - 2⁴ = 52621297 is a prime.

It is not a weakly prime, because it can be changed into another prime (52621343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26310656 + 26310657.

It is an arithmetic number, because the mean of its divisors is an integer number (26310657).

Almost surely, 2^52621313 is an apocalyptic number.

It is an amenable number.

52621313 is a deficient number, since it is larger than the sum of its proper divisors (1).

52621313 is an equidigital number, since it uses as much as digits as its factorization.

52621313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 52621313 is about 7254.0549350001. The cubic root of 52621313 is about 374.7318094278.

Adding to 52621313 its reverse (31312625), we get a palindrome (83933938).

The spelling of 52621313 in words is "fifty-two million, six hundred twenty-one thousand, three hundred thirteen".