51760220 has 24 divisors (see below), whose sum is σ = 109100544. Its totient is φ = 20627136.

The previous prime is 51760217. The next prime is 51760253. The reversal of 51760220 is 2206715.

51760220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 869 + ... + 10211.

It is an arithmetic number, because the mean of its divisors is an integer number (4545856).

Almost surely, 2^51760220 is an apocalyptic number.

It is an amenable number.

51760220 is an abundant number, since it is smaller than the sum of its proper divisors (57340324).

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

51760220 is a wasteful number, since it uses less digits than its factorization.

51760220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9629 (or 9627 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 51760220 is about 7194.4575890056. The cubic root of 51760220 is about 372.6765254942.

Adding to 51760220 its reverse (2206715), we get a palindrome (53966935).

The spelling of 51760220 in words is "fifty-one million, seven hundred sixty thousand, two hundred twenty".