51412265 has 4 divisors (see below), whose sum is σ = 61694724. Its totient is φ = 41129808.

The previous prime is 51412261. The next prime is 51412297. The reversal of 51412265 is 56221415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56221415 = 5 ⋅11244283.

It can be written as a sum of positive squares in 2 ways, for example, as 19749136 + 31663129 = 4444^2 + 5627^2 .

It is a cyclic number.

It is not a de Polignac number, because 51412265 - 2² = 51412261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51412261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5141222 + ... + 5141231.

It is an arithmetic number, because the mean of its divisors is an integer number (15423681).

Almost surely, 2^51412265 is an apocalyptic number.

It is an amenable number.

51412265 is a deficient number, since it is larger than the sum of its proper divisors (10282459).

51412265 is a wasteful number, since it uses less digits than its factorization.

51412265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10282458.

The product of its digits is 2400, while the sum is 26.

The square root of 51412265 is about 7170.2346544587. The cubic root of 51412265 is about 371.8395485824.

The spelling of 51412265 in words is "fifty-one million, four hundred twelve thousand, two hundred sixty-five".