20255672 has 16 divisors (see below), whose sum is σ = 39978600. Its totient is φ = 9594720.

The previous prime is 20255657. The next prime is 20255689. The reversal of 20255672 is 27655202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66479 + ... + 66782.

Almost surely, 2^20255672 is an apocalyptic number.

It is an amenable number.

20255672 is a deficient number, since it is larger than the sum of its proper divisors (19722928).

20255672 is a wasteful number, since it uses less digits than its factorization.

20255672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133286 (or 133282 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 20255672 is about 4500.6301780973. The cubic root of 20255672 is about 272.5935352109.

The spelling of 20255672 in words is "twenty million, two hundred fifty-five thousand, six hundred seventy-two".