51232265 has 16 divisors (see below), whose sum is σ = 73960320. Its totient is φ = 33281280.

The previous prime is 51232261. The next prime is 51232267. The reversal of 51232265 is 56223215.

51232265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51232265 - 2² = 51232261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51232261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37856 + ... + 39185.

It is an arithmetic number, because the mean of its divisors is an integer number (4622520).

Almost surely, 2^51232265 is an apocalyptic number.

It is an amenable number.

51232265 is a deficient number, since it is larger than the sum of its proper divisors (22728055).

51232265 is a wasteful number, since it uses less digits than its factorization.

51232265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77072.

The product of its digits is 3600, while the sum is 26.

The square root of 51232265 is about 7157.6717583304. The cubic root of 51232265 is about 371.4050907599.

The spelling of 51232265 in words is "fifty-one million, two hundred thirty-two thousand, two hundred sixty-five".