20425793 has 2 divisors, whose sum is σ = 20425794. Its totient is φ = 20425792.

The previous prime is 20425787. The next prime is 20425799. The reversal of 20425793 is 39752402.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20425787) and next prime (20425799).

It can be written as a sum of positive squares in only one way, i.e., 14799409 + 5626384 = 3847^2 + 2372^2 .

It is a cyclic number.

It is not a de Polignac number, because 20425793 - 2⁶ = 20425729 is a prime.

It is not a weakly prime, because it can be changed into another prime (20425799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10212896 + 10212897.

It is an arithmetic number, because the mean of its divisors is an integer number (10212897).

Almost surely, 2^20425793 is an apocalyptic number.

It is an amenable number.

20425793 is a deficient number, since it is larger than the sum of its proper divisors (1).

20425793 is an equidigital number, since it uses as much as digits as its factorization.

20425793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 20425793 is about 4519.4903473733. The cubic root of 20425793 is about 273.3545510332.

The spelling of 20425793 in words is "twenty million, four hundred twenty-five thousand, seven hundred ninety-three".