51616352 has 48 divisors (see below), whose sum is σ = 108319680. Its totient is φ = 24127488.

The previous prime is 51616343. The next prime is 51616363. The reversal of 51616352 is 25361615.

It is a congruent number.

It is an unprimeable number.

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, 129818 + ... + 130214.

It is an arithmetic number, because the mean of its divisors is an integer number (2256660).

Almost surely, 2^51616352 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 51616352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54159840).

51616352 is an abundant number, since it is smaller than the sum of its proper divisors (56703328).

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

51616352 is a wasteful number, since it uses less digits than its factorization.

51616352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 655 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 51616352 is about 7184.4521015871. The cubic root of 51616352 is about 372.3309191655.

Adding to 51616352 its reverse (25361615), we get a palindrome (76977967).

The spelling of 51616352 in words is "fifty-one million, six hundred sixteen thousand, three hundred fifty-two".