51842705 has 8 divisors (see below), whose sum is σ = 62762472. Its totient is φ = 41106688.

The previous prime is 51842699. The next prime is 51842711. The reversal of 51842705 is 50724815.

It is an interprime number because it is at equal distance from previous prime (51842699) and next prime (51842711).

It can be written as a sum of positive squares in 4 ways, for example, as 3845521 + 47997184 = 1961^2 + 6928^2 .

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

It is not a de Polignac number, because 51842705 - 2⁶ = 51842641 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, 45314 + ... + 46443.

It is an arithmetic number, because the mean of its divisors is an integer number (7845309).

Almost surely, 2^51842705 is an apocalyptic number.

It is an amenable number.

51842705 is a deficient number, since it is larger than the sum of its proper divisors (10919767).

51842705 is a wasteful number, since it uses less digits than its factorization.

51842705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91875.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 51842705 is about 7200.1878447718. The cubic root of 51842705 is about 372.8743859905.

The spelling of 51842705 in words is "fifty-one million, eight hundred forty-two thousand, seven hundred five".