51065258 has 4 divisors (see below), whose sum is σ = 76597890. Its totient is φ = 25532628.

The previous prime is 51065257. The next prime is 51065269. The reversal of 51065258 is 85256015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37982569 + 13082689 = 6163^2 + 3617^2 .

It is not an unprimeable number, because it can be changed into a prime (51065257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12766313 + ... + 12766316.

Almost surely, 2^51065258 is an apocalyptic number.

51065258 is a deficient number, since it is larger than the sum of its proper divisors (25532632).

51065258 is a wasteful number, since it uses less digits than its factorization.

51065258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25532631.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 51065258 is about 7145.9959417845. The cubic root of 51065258 is about 371.0010825231.

The spelling of 51065258 in words is "fifty-one million, sixty-five thousand, two hundred fifty-eight".