20753419 has 2 divisors, whose sum is σ = 20753420. Its totient is φ = 20753418.

The previous prime is 20753407. The next prime is 20753443. The reversal of 20753419 is 91435702.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20753419 is a prime.

It is a super-2 number, since 2×20753419² = 861408800379122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20753449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10376709 + 10376710.

It is an arithmetic number, because the mean of its divisors is an integer number (10376710).

Almost surely, 2^20753419 is an apocalyptic number.

20753419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20753419 is an equidigital number, since it uses as much as digits as its factorization.

20753419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 20753419 is about 4555.5920581193. The cubic root of 20753419 is about 274.8083248355.

The spelling of 20753419 in words is "twenty million, seven hundred fifty-three thousand, four hundred nineteen".