51112464 has 80 divisors (see below), whose sum is σ = 143782464. Its totient is φ = 15552000.

The previous prime is 51112441. The next prime is 51112487. The reversal of 51112464 is 46421115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51112441) and next prime (51112487).

It is a super-2 number, since 2×51112464² = 5224967952302592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 15 ways as a sum of consecutive naturals, for example, 62619 + ... + 63429.

Almost surely, 2^51112464 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 51112464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71891232).

51112464 is an abundant number, since it is smaller than the sum of its proper divisors (92670000).

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

51112464 is a wasteful number, since it uses less digits than its factorization.

51112464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 930 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 51112464 is about 7149.2981473708. The cubic root of 51112464 is about 371.1153682034.

Adding to 51112464 its reverse (46421115), we get a palindrome (97533579).

The spelling of 51112464 in words is "fifty-one million, one hundred twelve thousand, four hundred sixty-four".