20235254239 has 8 divisors (see below), whose sum is σ = 21306374000. Its totient is φ = 19164745152.

The previous prime is 20235254233. The next prime is 20235254279. The reversal of 20235254239 is 93245253202.

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 20235254239 - 2¹⁹ = 20234729951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20235254198 and 20235254207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20235254233) 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, 83844 + ... + 217945.

It is an arithmetic number, because the mean of its divisors is an integer number (2663296750).

Almost surely, 2^20235254239 is an apocalyptic number.

20235254239 is a deficient number, since it is larger than the sum of its proper divisors (1071119761).

20235254239 is a wasteful number, since it uses less digits than its factorization.

20235254239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305337.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 20235254239 in words is "twenty billion, two hundred thirty-five million, two hundred fifty-four thousand, two hundred thirty-nine".