51062665 has 8 divisors (see below), whose sum is σ = 61410888. Its totient is φ = 40759680.

The previous prime is 51062663. The next prime is 51062699. The reversal of 51062665 is 56626015.

It can be written as a sum of positive squares in 4 ways, for example, as 97344 + 50965321 = 312^2 + 7139^2 .

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

It is not a de Polignac number, because 51062665 - 2¹ = 51062663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51062663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8772 + ... + 13381.

It is an arithmetic number, because the mean of its divisors is an integer number (7676361).

Almost surely, 2^51062665 is an apocalyptic number.

It is an amenable number.

51062665 is a deficient number, since it is larger than the sum of its proper divisors (10348223).

51062665 is a wasteful number, since it uses less digits than its factorization.

51062665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22619.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 51062665 is about 7145.8145092075. The cubic root of 51062665 is about 370.9948028323.

The spelling of 51062665 in words is "fifty-one million, sixty-two thousand, six hundred sixty-five".