51370705 has 8 divisors (see below), whose sum is σ = 61958952. Its totient is φ = 40887168.

The previous prime is 51370639. The next prime is 51370717. The reversal of 51370705 is 50707315.

It can be written as a sum of positive squares in 4 ways, for example, as 35378704 + 15992001 = 5948^2 + 3999^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 51370705 - 2¹³ = 51362513 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, 25092 + ... + 27061.

It is an arithmetic number, because the mean of its divisors is an integer number (7744869).

Almost surely, 2^51370705 is an apocalyptic number.

It is an amenable number.

51370705 is a deficient number, since it is larger than the sum of its proper divisors (10588247).

51370705 is a wasteful number, since it uses less digits than its factorization.

51370705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52355.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 51370705 is about 7167.3359764978. The cubic root of 51370705 is about 371.7393272469.

The spelling of 51370705 in words is "fifty-one million, three hundred seventy thousand, seven hundred five".