20412253 has 2 divisors, whose sum is σ = 20412254. Its totient is φ = 20412252.

The previous prime is 20412233. The next prime is 20412263. The reversal of 20412253 is 35221402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12694969 + 7717284 = 3563^2 + 2778^2 .

It is a cyclic number.

It is not a de Polignac number, because 20412253 - 2⁵ = 20412221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20412253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20412233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206126 + 10206127.

It is an arithmetic number, because the mean of its divisors is an integer number (10206127).

Almost surely, 2^20412253 is an apocalyptic number.

It is an amenable number.

20412253 is a deficient number, since it is larger than the sum of its proper divisors (1).

20412253 is an equidigital number, since it uses as much as digits as its factorization.

20412253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 20412253 is about 4517.9921425341. The cubic root of 20412253 is about 273.2941365897.

Adding to 20412253 its reverse (35221402), we get a palindrome (55633655).

The spelling of 20412253 in words is "twenty million, four hundred twelve thousand, two hundred fifty-three".