20051453 has 2 divisors, whose sum is σ = 20051454. Its totient is φ = 20051452.

The previous prime is 20051431. The next prime is 20051461. The reversal of 20051453 is 35415002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18207289 + 1844164 = 4267^2 + 1358^2 .

It is a cyclic number.

It is not a de Polignac number, because 20051453 - 2²⁰ = 19002877 is a prime.

It is a super-2 number, since 2×20051453² = 804121534822418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20051953) 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, 10025726 + 10025727.

It is an arithmetic number, because the mean of its divisors is an integer number (10025727).

Almost surely, 2^20051453 is an apocalyptic number.

It is an amenable number.

20051453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20051453 is an equidigital number, since it uses as much as digits as its factorization.

20051453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 20051453 is about 4477.8848801638. The cubic root of 20051453 is about 271.6743372109.

Adding to 20051453 its reverse (35415002), we get a palindrome (55466455).

The spelling of 20051453 in words is "twenty million, fifty-one thousand, four hundred fifty-three".