20573351 has 2 divisors, whose sum is σ = 20573352. Its totient is φ = 20573350.

The previous prime is 20573347. The next prime is 20573387. The reversal of 20573351 is 15337502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20573351 - 2² = 20573347 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20573351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20573341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10286675 + 10286676.

It is an arithmetic number, because the mean of its divisors is an integer number (10286676).

Almost surely, 2^20573351 is an apocalyptic number.

20573351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20573351 is an equidigital number, since it uses as much as digits as its factorization.

20573351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 20573351 is about 4535.7855989894. The cubic root of 20573351 is about 274.0112192824.

The spelling of 20573351 in words is "twenty million, five hundred seventy-three thousand, three hundred fifty-one".