51702225 has 24 divisors (see below), whose sum is σ = 86765280. Its totient is φ = 27160320.

The previous prime is 51702223. The next prime is 51702251. The reversal of 51702225 is 52220715.

51702225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51702225 - 2¹ = 51702223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51702195 and 51702204.

It is not an unprimeable number, because it can be changed into a prime (51702221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120 + ... + 10169.

It is an arithmetic number, because the mean of its divisors is an integer number (3615220).

Almost surely, 2^51702225 is an apocalyptic number.

It is an amenable number.

51702225 is a deficient number, since it is larger than the sum of its proper divisors (35063055).

51702225 is a wasteful number, since it uses less digits than its factorization.

51702225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10369 (or 10364 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 51702225 is about 7190.4259261882. The cubic root of 51702225 is about 372.5372843781.

The spelling of 51702225 in words is "fifty-one million, seven hundred two thousand, two hundred twenty-five".