51036969 has 4 divisors (see below), whose sum is σ = 68049296. Its totient is φ = 34024644.

The previous prime is 51036959. The next prime is 51036989. The reversal of 51036969 is 96963015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51036969 - 2¹⁵ = 51004201 is a prime.

It is a super-2 number, since 2×51036969² = 5209544409413922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51036959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8506159 + ... + 8506164.

It is an arithmetic number, because the mean of its divisors is an integer number (17012324).

Almost surely, 2^51036969 is an apocalyptic number.

It is an amenable number.

51036969 is a deficient number, since it is larger than the sum of its proper divisors (17012327).

51036969 is a wasteful number, since it uses less digits than its factorization.

51036969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17012326.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 51036969 is about 7144.0163073722. The cubic root of 51036969 is about 370.9325611273.

The spelling of 51036969 in words is "fifty-one million, thirty-six thousand, nine hundred sixty-nine".