20419255 has 8 divisors (see below), whose sum is σ = 24869232. Its totient is φ = 16091328.

The previous prime is 20419253. The next prime is 20419279. The reversal of 20419255 is 55291402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20419255 - 2¹ = 20419253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20419253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30142 + ... + 30811.

It is an arithmetic number, because the mean of its divisors is an integer number (3108654).

Almost surely, 2^20419255 is an apocalyptic number.

20419255 is a deficient number, since it is larger than the sum of its proper divisors (4449977).

20419255 is an equidigital number, since it uses as much as digits as its factorization.

20419255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61025.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 20419255 is about 4518.7669778381. The cubic root of 20419255 is about 273.3253823122.

The spelling of 20419255 in words is "twenty million, four hundred nineteen thousand, two hundred fifty-five".