20275473 has 16 divisors (see below), whose sum is σ = 27662400. Its totient is φ = 13206336.

The previous prime is 20275469. The next prime is 20275483. The reversal of 20275473 is 37457202.

It is not a de Polignac number, because 20275473 - 2² = 20275469 is a prime.

It is a super-2 number, since 2×20275473² = 822189610747458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20275473.

It is not an unprimeable number, because it can be changed into a prime (20275433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29611 + ... + 30287.

It is an arithmetic number, because the mean of its divisors is an integer number (1728900).

Almost surely, 2^20275473 is an apocalyptic number.

It is an amenable number.

20275473 is a deficient number, since it is larger than the sum of its proper divisors (7386927).

20275473 is a wasteful number, since it uses less digits than its factorization.

20275473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 20275473 is about 4502.8294438053. The cubic root of 20275473 is about 272.6823311906.

The spelling of 20275473 in words is "twenty million, two hundred seventy-five thousand, four hundred seventy-three".