51030965 has 8 divisors (see below), whose sum is σ = 61396920. Its totient is φ = 40718272.

The previous prime is 51030949. The next prime is 51030971. The reversal of 51030965 is 56903015.

It can be written as a sum of positive squares in 4 ways, for example, as 22801 + 51008164 = 151^2 + 7142^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51030965 - 2⁴ = 51030949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11174 + ... + 15063.

It is an arithmetic number, because the mean of its divisors is an integer number (7674615).

Almost surely, 2^51030965 is an apocalyptic number.

It is an amenable number.

51030965 is a deficient number, since it is larger than the sum of its proper divisors (10365955).

51030965 is a wasteful number, since it uses less digits than its factorization.

51030965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26631.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 51030965 is about 7143.5960832063. The cubic root of 51030965 is about 370.9180150282.

The spelling of 51030965 in words is "fifty-one million, thirty thousand, nine hundred sixty-five".