20265427 has 16 divisors (see below), whose sum is σ = 25527040. Its totient is φ = 15658272.

The previous prime is 20265409. The next prime is 20265433. The reversal of 20265427 is 72456202.

It is not a de Polignac number, because 20265427 - 2⁷ = 20265299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20265395 and 20265404.

It is not an unprimeable number, because it can be changed into a prime (20265407) 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, 1324 + ... + 6502.

It is an arithmetic number, because the mean of its divisors is an integer number (1595440).

Almost surely, 2^20265427 is an apocalyptic number.

20265427 is a deficient number, since it is larger than the sum of its proper divisors (5261613).

20265427 is a wasteful number, since it uses less digits than its factorization.

20265427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5242.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 20265427 is about 4501.7137847713. The cubic root of 20265427 is about 272.6372879463.

The spelling of 20265427 in words is "twenty million, two hundred sixty-five thousand, four hundred twenty-seven".