51360605 has 8 divisors (see below), whose sum is σ = 61727832. Its totient is φ = 41025088.

The previous prime is 51360599. The next prime is 51360607. The reversal of 51360605 is 50606315.

It can be written as a sum of positive squares in 4 ways, for example, as 33016516 + 18344089 = 5746^2 + 4283^2 .

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 51360605 - 2¹² = 51356509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51360607) 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, 4202 + ... + 10971.

It is an arithmetic number, because the mean of its divisors is an integer number (7715979).

Almost surely, 2^51360605 is an apocalyptic number.

It is an amenable number.

51360605 is a deficient number, since it is larger than the sum of its proper divisors (10367227).

51360605 is a wasteful number, since it uses less digits than its factorization.

51360605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15855.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 51360605 is about 7166.6313565022. The cubic root of 51360605 is about 371.7149630800.

The spelling of 51360605 in words is "fifty-one million, three hundred sixty thousand, six hundred five".