20155627 has 2 divisors, whose sum is σ = 20155628. Its totient is φ = 20155626.

The previous prime is 20155607. The next prime is 20155643. The reversal of 20155627 is 72655102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20155627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20155595 and 20155604.

It is not a weakly prime, because it can be changed into another prime (20155607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10077813 + 10077814.

It is an arithmetic number, because the mean of its divisors is an integer number (10077814).

Almost surely, 2^20155627 is an apocalyptic number.

20155627 is a deficient number, since it is larger than the sum of its proper divisors (1).

20155627 is an equidigital number, since it uses as much as digits as its factorization.

20155627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 20155627 is about 4489.5018654635. The cubic root of 20155627 is about 272.1440044487.

The spelling of 20155627 in words is "twenty million, one hundred fifty-five thousand, six hundred twenty-seven".