51329465 has 8 divisors (see below), whose sum is σ = 67195008. Its totient is φ = 37330480.

The previous prime is 51329419. The next prime is 51329489. The reversal of 51329465 is 56492315.

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

It is not a de Polignac number, because 51329465 - 2¹⁰ = 51328441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466577 + ... + 466686.

It is an arithmetic number, because the mean of its divisors is an integer number (8399376).

Almost surely, 2^51329465 is an apocalyptic number.

51329465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51329465 is a deficient number, since it is larger than the sum of its proper divisors (15865543).

51329465 is a wasteful number, since it uses less digits than its factorization.

51329465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933279.

The product of its digits is 32400, while the sum is 35.

The square root of 51329465 is about 7164.4584582507. The cubic root of 51329465 is about 371.6398241410.

The spelling of 51329465 in words is "fifty-one million, three hundred twenty-nine thousand, four hundred sixty-five".