51010520 has 32 divisors (see below), whose sum is σ = 125208720. Its totient is φ = 18549120.

The previous prime is 51010511. The next prime is 51010541. The reversal of 51010520 is 2501015.

51010520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51010495 and 51010504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57527 + ... + 58406.

Almost surely, 2^51010520 is an apocalyptic number.

It is an amenable number.

51010520 is an abundant number, since it is smaller than the sum of its proper divisors (74198200).

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

51010520 is a wasteful number, since it uses less digits than its factorization.

51010520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115955 (or 115951 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 51010520 is about 7142.1649378882. The cubic root of 51010520 is about 370.8684736580.

Adding to 51010520 its reverse (2501015), we get a palindrome (53511535).

The spelling of 51010520 in words is "fifty-one million, ten thousand, five hundred twenty".