20027088257 has 8 divisors (see below), whose sum is σ = 21852688032. Its totient is φ = 18202314400.

The previous prime is 20027088251. The next prime is 20027088269. The reversal of 20027088257 is 75288072002.

It is a happy number.

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 20027088257 - 2²⁰ = 20026039681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20027088251) 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, 155219 + ... + 253272.

It is an arithmetic number, because the mean of its divisors is an integer number (2731586004).

Almost surely, 2^20027088257 is an apocalyptic number.

It is an amenable number.

20027088257 is a deficient number, since it is larger than the sum of its proper divisors (1825599775).

20027088257 is a wasteful number, since it uses less digits than its factorization.

20027088257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412959.

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 20027088257 in words is "twenty billion, twenty-seven million, eighty-eight thousand, two hundred fifty-seven".