51325416 has 48 divisors (see below), whose sum is σ = 140458500. Its totient is φ = 16929792.

The previous prime is 51325411. The next prime is 51325423. The reversal of 51325416 is 61452315.

51325416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51065316 + 260100 = 7146^2 + 510^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51325416.

It is not an unprimeable number, because it can be changed into a prime (51325411) 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, 3310 + ... + 10658.

Almost surely, 2^51325416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51325416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70229250).

51325416 is an abundant number, since it is smaller than the sum of its proper divisors (89133084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51325416 is a wasteful number, since it uses less digits than its factorization.

51325416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7458 (or 7451 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 51325416 is about 7164.1758772381. The cubic root of 51325416 is about 371.6300519162.

The spelling of 51325416 in words is "fifty-one million, three hundred twenty-five thousand, four hundred sixteen".