51345829 has 4 divisors (see below), whose sum is σ = 51417184. Its totient is φ = 51274476.

The previous prime is 51345803. The next prime is 51345839. The reversal of 51345829 is 92854315.

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, and also an emirpimes, since its reverse is a distinct semiprime: 92854315 = 5 ⋅18570863.

It is a cyclic number.

It is not a de Polignac number, because 51345829 - 2⁹ = 51345317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51345839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34587 + ... + 36040.

It is an arithmetic number, because the mean of its divisors is an integer number (12854296).

Almost surely, 2^51345829 is an apocalyptic number.

It is an amenable number.

51345829 is a deficient number, since it is larger than the sum of its proper divisors (71355).

51345829 is an equidigital number, since it uses as much as digits as its factorization.

51345829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71354.

The product of its digits is 43200, while the sum is 37.

The square root of 51345829 is about 7165.6003935469. The cubic root of 51345829 is about 371.6793132722.

The spelling of 51345829 in words is "fifty-one million, three hundred forty-five thousand, eight hundred twenty-nine".