51013424 has 80 divisors (see below), whose sum is σ = 125991936. Its totient is φ = 19430400.

The previous prime is 51013409. The next prime is 51013439. The reversal of 51013424 is 42431015.

It is an interprime number because it is at equal distance from previous prime (51013409) and next prime (51013439).

It is a junction number, because it is equal to n+sod(n) for n = 51013396 and 51013405.

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, 57464 + ... + 58344.

Almost surely, 2^51013424 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 51013424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62995968).

51013424 is an abundant number, since it is smaller than the sum of its proper divisors (74978512).

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

51013424 is a wasteful number, since it uses less digits than its factorization.

51013424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 51013424 is about 7142.3682346964. The cubic root of 51013424 is about 370.8755113018.

Adding to 51013424 its reverse (42431015), we get a palindrome (93444439).

The spelling of 51013424 in words is "fifty-one million, thirteen thousand, four hundred twenty-four".