20255594 has 8 divisors (see below), whose sum is σ = 31704480. Its totient is φ = 9687436.

The previous prime is 20255591. The next prime is 20255603. The reversal of 20255594 is 49555202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20255594.

It is not an unprimeable number, because it can be changed into a prime (20255591) 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, 220124 + ... + 220215.

It is an arithmetic number, because the mean of its divisors is an integer number (3963060).

Almost surely, 2^20255594 is an apocalyptic number.

20255594 is a deficient number, since it is larger than the sum of its proper divisors (11448886).

20255594 is a wasteful number, since it uses less digits than its factorization.

20255594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440364.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 20255594 is about 4500.6215126358. The cubic root of 20255594 is about 272.5931853118.

The spelling of 20255594 in words is "twenty million, two hundred fifty-five thousand, five hundred ninety-four".