20455627 has 2 divisors, whose sum is σ = 20455628. Its totient is φ = 20455626.

The previous prime is 20455601. The next prime is 20455637. The reversal of 20455627 is 72655402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20455627 - 2⁷ = 20455499 is a prime.

It is equal to p_1297624 and since 20455627 and 1297624 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (20455637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10227813 + 10227814.

It is an arithmetic number, because the mean of its divisors is an integer number (10227814).

Almost surely, 2^20455627 is an apocalyptic number.

20455627 is a deficient number, since it is larger than the sum of its proper divisors (1).

20455627 is an equidigital number, since it uses as much as digits as its factorization.

20455627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 20455627 is about 4522.7897364348. The cubic root of 20455627 is about 273.4875738957.

The spelling of 20455627 in words is "twenty million, four hundred fifty-five thousand, six hundred twenty-seven".