51151165 has 8 divisors (see below), whose sum is σ = 66103128. Its totient is φ = 37773120.

The previous prime is 51151153. The next prime is 51151207. The reversal of 51151165 is 56115115.

It can be written as a sum of positive squares in 4 ways, for example, as 6140484 + 45010681 = 2478^2 + 6709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51151165 - 2²³ = 42762557 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 393406 + ... + 393535.

It is an arithmetic number, because the mean of its divisors is an integer number (8262891).

Almost surely, 2^51151165 is an apocalyptic number.

It is an amenable number.

51151165 is a deficient number, since it is larger than the sum of its proper divisors (14951963).

51151165 is a wasteful number, since it uses less digits than its factorization.

51151165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786959.

The product of its digits is 750, while the sum is 25.

The square root of 51151165 is about 7152.0042645401. The cubic root of 51151165 is about 371.2090108056.

The spelling of 51151165 in words is "fifty-one million, one hundred fifty-one thousand, one hundred sixty-five".