20255454 has 16 divisors (see below), whose sum is σ = 45012240. Its totient is φ = 6751800.

The previous prime is 20255447. The next prime is 20255509. The reversal of 20255454 is 45455202.

20255454 is a `hidden beast` number, since 202 + 5 + 5 + 454 = 666.

It is a super-2 number, since 2×20255454² = 820566833492232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187497 + ... + 187604.

It is an arithmetic number, because the mean of its divisors is an integer number (2813265).

Almost surely, 2^20255454 is an apocalyptic number.

20255454 is an abundant number, since it is smaller than the sum of its proper divisors (24756786).

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

20255454 is a wasteful number, since it uses less digits than its factorization.

20255454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375112 (or 375106 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 20255454 is about 4500.6059592015. The cubic root of 20255454 is about 272.5925572856.

The spelling of 20255454 in words is "twenty million, two hundred fifty-five thousand, four hundred fifty-four".