51425371 has 8 divisors (see below), whose sum is σ = 52272864. Its totient is φ = 50581440.

The previous prime is 51425351. The next prime is 51425383. The reversal of 51425371 is 17352415.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51425371 - 2⁷ = 51425243 is a prime.

It is a super-3 number, since 3×51425371³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51425321) 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 7 ways as a sum of consecutive naturals, for example, 54415 + ... + 55351.

It is an arithmetic number, because the mean of its divisors is an integer number (6534108).

Almost surely, 2^51425371 is an apocalyptic number.

51425371 is a deficient number, since it is larger than the sum of its proper divisors (847493).

51425371 is an equidigital number, since it uses as much as digits as its factorization.

51425371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781.

The product of its digits is 4200, while the sum is 28.

The square root of 51425371 is about 7171.1485133136. The cubic root of 51425371 is about 371.8711423087.

Adding to 51425371 its reverse (17352415), we get a palindrome (68777786).

The spelling of 51425371 in words is "fifty-one million, four hundred twenty-five thousand, three hundred seventy-one".