61323253 has 2 divisors, whose sum is σ = 61323254. Its totient is φ = 61323252.

The previous prime is 61323247. The next prime is 61323259. The reversal of 61323253 is 35232316.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (61323247) and next prime (61323259).

It can be written as a sum of positive squares in only one way, i.e., 35129329 + 26193924 = 5927^2 + 5118^2 .

It is a cyclic number.

It is not a de Polignac number, because 61323253 - 2⁹ = 61322741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61323259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30661626 + 30661627.

It is an arithmetic number, because the mean of its divisors is an integer number (30661627).

Almost surely, 2^61323253 is an apocalyptic number.

It is an amenable number.

61323253 is a deficient number, since it is larger than the sum of its proper divisors (1).

61323253 is an equidigital number, since it uses as much as digits as its factorization.

61323253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 25.

The square root of 61323253 is about 7830.9164853164. The cubic root of 61323253 is about 394.3438403806.

Adding to 61323253 its reverse (35232316), we get a palindrome (96555569).

The spelling of 61323253 in words is "sixty-one million, three hundred twenty-three thousand, two hundred fifty-three".