20675527 has 2 divisors, whose sum is σ = 20675528. Its totient is φ = 20675526.

The previous prime is 20675513. The next prime is 20675531. The reversal of 20675527 is 72557602.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20675527 - 2⁷ = 20675399 is a prime.

It is a super-3 number, since 3×20675527³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20675492 and 20675501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20675507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10337763 + 10337764.

It is an arithmetic number, because the mean of its divisors is an integer number (10337764).

Almost surely, 2^20675527 is an apocalyptic number.

20675527 is a deficient number, since it is larger than the sum of its proper divisors (1).

20675527 is an equidigital number, since it uses as much as digits as its factorization.

20675527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 20675527 is about 4547.0349679764. The cubic root of 20675527 is about 274.4640890953.

The spelling of 20675527 in words is "twenty million, six hundred seventy-five thousand, five hundred twenty-seven".