51759425 has 12 divisors (see below), whose sum is σ = 65748396. Its totient is φ = 40396800.

The previous prime is 51759397. The next prime is 51759427. The reversal of 51759425 is 52495715.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 18593344 + 33166081 = 4312^2 + 5759^2 .

It is a de Polignac number, because none of the positive numbers 2^k-51759425 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51759427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24224 + ... + 26273.

It is an arithmetic number, because the mean of its divisors is an integer number (5479033).

Almost surely, 2^51759425 is an apocalyptic number.

It is an amenable number.

51759425 is a deficient number, since it is larger than the sum of its proper divisors (13988971).

51759425 is a wasteful number, since it uses less digits than its factorization.

51759425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50548 (or 50543 counting only the distinct ones).

The product of its digits is 63000, while the sum is 38.

The square root of 51759425 is about 7194.4023379291. The cubic root of 51759425 is about 372.6746174693.

The spelling of 51759425 in words is "fifty-one million, seven hundred fifty-nine thousand, four hundred twenty-five".