51142425 has 12 divisors (see below), whose sum is σ = 84555600. Its totient is φ = 27275920.

The previous prime is 51142423. The next prime is 51142451. The reversal of 51142425 is 52424115.

51142425 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 51142425 - 2¹ = 51142423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51142395 and 51142404.

It is not an unprimeable number, because it can be changed into a prime (51142423) 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 11 ways as a sum of consecutive naturals, for example, 340875 + ... + 341024.

It is an arithmetic number, because the mean of its divisors is an integer number (7046300).

Almost surely, 2^51142425 is an apocalyptic number.

It is an amenable number.

51142425 is a deficient number, since it is larger than the sum of its proper divisors (33413175).

51142425 is a wasteful number, since it uses less digits than its factorization.

51142425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681912 (or 681907 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 51142425 is about 7151.3932209046. The cubic root of 51142425 is about 371.1878672562.

The spelling of 51142425 in words is "fifty-one million, one hundred forty-two thousand, four hundred twenty-five".