51475336 has 48 divisors (see below), whose sum is σ = 108759420. Its totient is φ = 22809600.

The previous prime is 51475297. The next prime is 51475339. The reversal of 51475336 is 63357415.

It can be written as a sum of positive squares in 2 ways, for example, as 51122500 + 352836 = 7150^2 + 594^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (51475339) 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 11 ways as a sum of consecutive naturals, for example, 39040 + ... + 40336.

Almost surely, 2^51475336 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 51475336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54379710).

51475336 is an abundant number, since it is smaller than the sum of its proper divisors (57284084).

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

51475336 is a wasteful number, since it uses less digits than its factorization.

51475336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1351 counting only the distinct ones).

The product of its digits is 37800, while the sum is 34.

The square root of 51475336 is about 7174.6314191044. The cubic root of 51475336 is about 371.9915402555.

The spelling of 51475336 in words is "fifty-one million, four hundred seventy-five thousand, three hundred thirty-six".