51480024 has 32 divisors (see below), whose sum is σ = 132180720. Its totient is φ = 16695936.

The previous prime is 51480019. The next prime is 51480059. The reversal of 51480024 is 42008415.

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

It is a junction number, because it is equal to n+sod(n) for n = 51479976 and 51480003.

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, 28099 + ... + 29874.

Almost surely, 2^51480024 is an apocalyptic number.

It is an amenable number.

51480024 is an abundant number, since it is smaller than the sum of its proper divisors (80700696).

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

51480024 is a wasteful number, since it uses less digits than its factorization.

51480024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58019 (or 58015 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 51480024 is about 7174.9581183447. The cubic root of 51480024 is about 372.0028326759.

Adding to 51480024 its reverse (42008415), we get a palindrome (93488439).

The spelling of 51480024 in words is "fifty-one million, four hundred eighty thousand, twenty-four".