51333552 has 60 divisors (see below), whose sum is σ = 145099344. Its totient is φ = 16940160.

The previous prime is 51333533. The next prime is 51333589. The reversal of 51333552 is 25533315.

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, 13102 + ... + 16562.

Almost surely, 2^51333552 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 51333552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72549672).

51333552 is an abundant number, since it is smaller than the sum of its proper divisors (93765792).

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

51333552 is a wasteful number, since it uses less digits than its factorization.

51333552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578 (or 3569 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 51333552 is about 7164.7436799930. The cubic root of 51333552 is about 371.6496875573.

Adding to 51333552 its reverse (25533315), we get a palindrome (76866867).

The spelling of 51333552 in words is "fifty-one million, three hundred thirty-three thousand, five hundred fifty-two".