65526813 has 40 divisors (see below), whose sum is σ = 107575776. Its totient is φ = 39420000.

The previous prime is 65526761. The next prime is 65526833. The reversal of 65526813 is 31862556.

It is not a de Polignac number, because 65526813 - 2⁸ = 65526557 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65526833) 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 in 39 ways as a sum of consecutive naturals, for example, 223495 + ... + 223787.

Almost surely, 2^65526813 is an apocalyptic number.

It is an amenable number.

65526813 is a deficient number, since it is larger than the sum of its proper divisors (42048963).

65526813 is a wasteful number, since it uses less digits than its factorization.

65526813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 558 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 65526813 is about 8094.8633712991. The cubic root of 65526813 is about 403.1558957392.

The spelling of 65526813 in words is "sixty-five million, five hundred twenty-six thousand, eight hundred thirteen".