65226538 has 24 divisors (see below), whose sum is σ = 107016588. Its totient is φ = 29637888.

The previous prime is 65226533. The next prime is 65226547. The reversal of 65226538 is 83562256.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1912689 + 63313849 = 1383^2 + 7957^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65226497 and 65226506.

It is not an unprimeable number, because it can be changed into a prime (65226533) 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, 437688 + ... + 437836.

Almost surely, 2^65226538 is an apocalyptic number.

65226538 is a deficient number, since it is larger than the sum of its proper divisors (41790050).

65226538 is a wasteful number, since it uses less digits than its factorization.

65226538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 277 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 65226538 is about 8076.2948187891. The cubic root of 65226538 is about 402.5391353740.

The spelling of 65226538 in words is "sixty-five million, two hundred twenty-six thousand, five hundred thirty-eight".