51360245 has 16 divisors (see below), whose sum is σ = 62856192. Its totient is φ = 40279680.

The previous prime is 51360241. The next prime is 51360251. The reversal of 51360245 is 54206315.

It is not a de Polignac number, because 51360245 - 2² = 51360241 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 (51360241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81080 + ... + 81710.

It is an arithmetic number, because the mean of its divisors is an integer number (3928512).

Almost surely, 2^51360245 is an apocalyptic number.

It is an amenable number.

51360245 is a deficient number, since it is larger than the sum of its proper divisors (11495947).

51360245 is a wasteful number, since it uses less digits than its factorization.

51360245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 51360245 is about 7166.6062400553. The cubic root of 51360245 is about 371.7140945953.

The spelling of 51360245 in words is "fifty-one million, three hundred sixty thousand, two hundred forty-five".