51313152 has 80 divisors (see below), whose sum is σ = 149177952. Its totient is φ = 15544320.

The previous prime is 51313127. The next prime is 51313159. The reversal of 51313152 is 25131315.

It is not an unprimeable number, because it can be changed into a prime (51313159) 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 7 ways as a sum of consecutive naturals, for example, 15378 + ... + 18414.

Almost surely, 2^51313152 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 51313152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74588976).

51313152 is an abundant number, since it is smaller than the sum of its proper divisors (97864800).

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

51313152 is a wasteful number, since it uses less digits than its factorization.

51313152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069 (or 3053 counting only the distinct ones).

The product of its digits is 450, while the sum is 21.

The square root of 51313152 is about 7163.3199007164. The cubic root of 51313152 is about 371.6004497270.

Adding to 51313152 its reverse (25131315), we get a palindrome (76444467).

The spelling of 51313152 in words is "fifty-one million, three hundred thirteen thousand, one hundred fifty-two".