51042345 has 8 divisors (see below), whose sum is σ = 81667776. Its totient is φ = 27222576.

The previous prime is 51042323. The next prime is 51042367. The reversal of 51042345 is 54324015.

It is an interprime number because it is at equal distance from previous prime (51042323) and next prime (51042367).

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

It is not a de Polignac number, because 51042345 - 2⁶ = 51042281 is a prime.

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, 1701397 + ... + 1701426.

It is an arithmetic number, because the mean of its divisors is an integer number (10208472).

Almost surely, 2^51042345 is an apocalyptic number.

It is an amenable number.

51042345 is a deficient number, since it is larger than the sum of its proper divisors (30625431).

51042345 is a wasteful number, since it uses less digits than its factorization.

51042345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402831.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 51042345 is about 7144.3925564039. The cubic root of 51042345 is about 370.9455847811.

The spelling of 51042345 in words is "fifty-one million, forty-two thousand, three hundred forty-five".