51425935 has 16 divisors (see below), whose sum is σ = 71282592. Its totient is φ = 35200000.

The previous prime is 51425929. The next prime is 51425987. The reversal of 51425935 is 53952415.

It is a de Polignac number, because none of the positive numbers 2^k-51425935 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51425935.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26566 + ... + 28435.

It is an arithmetic number, because the mean of its divisors is an integer number (4455162).

Almost surely, 2^51425935 is an apocalyptic number.

51425935 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51425935 is a deficient number, since it is larger than the sum of its proper divisors (19856657).

51425935 is a wasteful number, since it uses less digits than its factorization.

51425935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55034.

The product of its digits is 27000, while the sum is 34.

The square root of 51425935 is about 7171.1878374506. The cubic root of 51425935 is about 371.8725017839.

The spelling of 51425935 in words is "fifty-one million, four hundred twenty-five thousand, nine hundred thirty-five".