26020631 has 16 divisors (see below), whose sum is σ = 32472384. Its totient is φ = 20300544.

The previous prime is 26020573. The next prime is 26020651. The reversal of 26020631 is 13602062.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26020631 is a prime.

It is a super-2 number, since 2×26020631² = 1354146475276322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26020651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4685 + ... + 8601.

It is an arithmetic number, because the mean of its divisors is an integer number (2029524).

Almost surely, 2^26020631 is an apocalyptic number.

26020631 is a deficient number, since it is larger than the sum of its proper divisors (6451753).

26020631 is a wasteful number, since it uses less digits than its factorization.

26020631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 26020631 is about 5101.0421484242. The cubic root of 26020631 is about 296.3279441452.

Adding to 26020631 its reverse (13602062), we get a palindrome (39622693).

The spelling of 26020631 in words is "twenty-six million, twenty thousand, six hundred thirty-one".