51948906 has 24 divisors (see below), whose sum is σ = 110372640. Its totient is φ = 16297152.

The previous prime is 51948863. The next prime is 51948931. The reversal of 51948906 is 60984915.

51948906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 13246 + ... + 16713.

It is an arithmetic number, because the mean of its divisors is an integer number (4598860).

Almost surely, 2^51948906 is an apocalyptic number.

51948906 is an abundant number, since it is smaller than the sum of its proper divisors (58423734).

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

51948906 is a wasteful number, since it uses less digits than its factorization.

51948906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29998 (or 29981 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 51948906 is about 7207.5589487704. The cubic root of 51948906 is about 373.1288263091.

The spelling of 51948906 in words is "fifty-one million, nine hundred forty-eight thousand, nine hundred six".