20527077 has 4 divisors (see below), whose sum is σ = 27369440. Its totient is φ = 13684716.

The previous prime is 20527057. The next prime is 20527093. The reversal of 20527077 is 77072502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20527077 - 2⁷ = 20526949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20527027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3421177 + ... + 3421182.

It is an arithmetic number, because the mean of its divisors is an integer number (6842360).

Almost surely, 2^20527077 is an apocalyptic number.

It is an amenable number.

20527077 is a deficient number, since it is larger than the sum of its proper divisors (6842363).

20527077 is an equidigital number, since it uses as much as digits as its factorization.

20527077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6842362.

The product of its (nonzero) digits is 6860, while the sum is 30.

The square root of 20527077 is about 4530.6817367809. The cubic root of 20527077 is about 273.8056278604.

Adding to 20527077 its reverse (77072502), we get a palindrome (97599579).

The spelling of 20527077 in words is "twenty million, five hundred twenty-seven thousand, seventy-seven".