51967565 has 32 divisors (see below), whose sum is σ = 73180800. Its totient is φ = 35078400.

The previous prime is 51967537. The next prime is 51967577. The reversal of 51967565 is 56576915.

It is not a de Polignac number, because 51967565 - 2⁸ = 51967309 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35090 + ... + 36540.

It is an arithmetic number, because the mean of its divisors is an integer number (2286900).

Almost surely, 2^51967565 is an apocalyptic number.

It is an amenable number.

51967565 is a deficient number, since it is larger than the sum of its proper divisors (21213235).

51967565 is a wasteful number, since it uses less digits than its factorization.

51967565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517.

The product of its digits is 283500, while the sum is 44.

The square root of 51967565 is about 7208.8532375129. The cubic root of 51967565 is about 373.1734944129.

The spelling of 51967565 in words is "fifty-one million, nine hundred sixty-seven thousand, five hundred sixty-five".