51550908 has 24 divisors (see below), whose sum is σ = 121167312. Its totient is φ = 17057664.

The previous prime is 51550867. The next prime is 51550913. The reversal of 51550908 is 80905515.

51550908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51550908² = 5314992231248928, which contains 22 as substring.

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, 14035 + ... + 17322.

It is an arithmetic number, because the mean of its divisors is an integer number (5048638).

Almost surely, 2^51550908 is an apocalyptic number.

It is an amenable number.

51550908 is an abundant number, since it is smaller than the sum of its proper divisors (69616404).

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

51550908 is a wasteful number, since it uses less digits than its factorization.

51550908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31501 (or 31499 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

The square root of 51550908 is about 7179.8960995268. The cubic root of 51550908 is about 372.1734940527.

The spelling of 51550908 in words is "fifty-one million, five hundred fifty thousand, nine hundred eight".