20750419 has 2 divisors, whose sum is σ = 20750420. Its totient is φ = 20750418.

The previous prime is 20750417. The next prime is 20750423. The reversal of 20750419 is 91405702.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20750419 - 2¹ = 20750417 is a prime.

It is a super-2 number, since 2×20750419² = 861159777351122, which contains 22 as substring.

Together with 20750417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20750417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10375209 + 10375210.

It is an arithmetic number, because the mean of its divisors is an integer number (10375210).

Almost surely, 2^20750419 is an apocalyptic number.

20750419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20750419 is an equidigital number, since it uses as much as digits as its factorization.

20750419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 20750419 is about 4555.2627805649. The cubic root of 20750419 is about 274.7950826046.

The spelling of 20750419 in words is "twenty million, seven hundred fifty thousand, four hundred nineteen".