51275605 has 8 divisors (see below), whose sum is σ = 61603200. Its totient is φ = 40972176.

The previous prime is 51275603. The next prime is 51275629. The reversal of 51275605 is 50657215.

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 51275605 - 2¹ = 51275603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51275603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985 + ... + 10174.

It is an arithmetic number, because the mean of its divisors is an integer number (7700400).

Almost surely, 2^51275605 is an apocalyptic number.

It is an amenable number.

51275605 is a deficient number, since it is larger than the sum of its proper divisors (10327595).

51275605 is a wasteful number, since it uses less digits than its factorization.

51275605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12083.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 51275605 is about 7160.6986390994. The cubic root of 51275605 is about 371.5097914452.

The spelling of 51275605 in words is "fifty-one million, two hundred seventy-five thousand, six hundred five".