20526077 has 12 divisors (see below), whose sum is σ = 24299100. Its totient is φ = 17223360.

The previous prime is 20526071. The next prime is 20526151. The reversal of 20526077 is 77062502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7027801 + 13498276 = 2651^2 + 3674^2 .

It is not a de Polignac number, because 20526077 - 2¹⁰ = 20525053 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 (20526071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4952 + ... + 8097.

It is an arithmetic number, because the mean of its divisors is an integer number (2024925).

Almost surely, 2^20526077 is an apocalyptic number.

It is an amenable number.

20526077 is a deficient number, since it is larger than the sum of its proper divisors (3773023).

20526077 is a wasteful number, since it uses less digits than its factorization.

20526077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13084 (or 13073 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 20526077 is about 4530.5713767692. The cubic root of 20526077 is about 273.8011815369.

Adding to 20526077 its reverse (77062502), we get a palindrome (97588579).

The spelling of 20526077 in words is "twenty million, five hundred twenty-six thousand, seventy-seven".