51625065 has 16 divisors (see below), whose sum is σ = 82830528. Its totient is φ = 27456576.

The previous prime is 51625061. The next prime is 51625081. The reversal of 51625065 is 56052615.

It is not a de Polignac number, because 51625065 - 2² = 51625061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51625061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982 + ... + 10208.

It is an arithmetic number, because the mean of its divisors is an integer number (5176908).

Almost surely, 2^51625065 is an apocalyptic number.

It is an amenable number.

51625065 is a deficient number, since it is larger than the sum of its proper divisors (31205463).

51625065 is a wasteful number, since it uses less digits than its factorization.

51625065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9608.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 51625065 is about 7185.0584548770. The cubic root of 51625065 is about 372.3518681907.

The spelling of 51625065 in words is "fifty-one million, six hundred twenty-five thousand, sixty-five".