51089269 has 32 divisors (see below), whose sum is σ = 66067200. Its totient is φ = 38361600.

The previous prime is 51089263. The next prime is 51089273. The reversal of 51089269 is 96298015.

It is a cyclic number.

It is not a de Polignac number, because 51089269 - 2³ = 51089261 is a prime.

It is a super-2 number, since 2×51089269² = 5220226813908722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51089261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342807 + ... + 342955.

It is an arithmetic number, because the mean of its divisors is an integer number (2064600).

It is a vampire number, since it can be written as 5621 ⋅ 9089 (with its own digits).

Almost surely, 2^51089269 is an apocalyptic number.

It is an amenable number.

51089269 is a deficient number, since it is larger than the sum of its proper divisors (14977931).

51089269 is a wasteful number, since it uses less digits than its factorization.

51089269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 51089269 is about 7147.6757760827. The cubic root of 51089269 is about 371.0592219282.

The spelling of 51089269 in words is "fifty-one million, eighty-nine thousand, two hundred sixty-nine".