20255768574 has 8 divisors (see below), whose sum is σ = 40511537160. Its totient is φ = 6751922856.

The previous prime is 20255768567. The next prime is 20255768579. The reversal of 20255768574 is 47586755202.

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

20255768574 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20255768579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687980709 + ... + 1687980720.

It is an arithmetic number, because the mean of its divisors is an integer number (5063942145).

Almost surely, 2^20255768574 is an apocalyptic number.

20255768574 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20255768574 is a wasteful number, since it uses less digits than its factorization.

20255768574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375961434.

The product of its (nonzero) digits is 4704000, while the sum is 51.

The spelling of 20255768574 in words is "twenty billion, two hundred fifty-five million, seven hundred sixty-eight thousand, five hundred seventy-four".