51423425 has 12 divisors (see below), whose sum is σ = 63887280. Its totient is φ = 41059920.

The previous prime is 51423413. The next prime is 51423431. The reversal of 51423425 is 52432415.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-51423425 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51423394 and 51423403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13814 + ... + 17136.

It is an arithmetic number, because the mean of its divisors is an integer number (5323940).

Almost surely, 2^51423425 is an apocalyptic number.

It is an amenable number.

51423425 is a deficient number, since it is larger than the sum of its proper divisors (12463855).

51423425 is a wasteful number, since it uses less digits than its factorization.

51423425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952 (or 3947 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 51423425 is about 7171.0128294405. The cubic root of 51423425 is about 371.8664515607.

The spelling of 51423425 in words is "fifty-one million, four hundred twenty-three thousand, four hundred twenty-five".