51949506 has 24 divisors (see below), whose sum is σ = 120862800. Its totient is φ = 14842632.

The previous prime is 51949453. The next prime is 51949511. The reversal of 51949506 is 60594915.

51949506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 88056 + ... + 88643.

It is an arithmetic number, because the mean of its divisors is an integer number (5035950).

Almost surely, 2^51949506 is an apocalyptic number.

51949506 is an abundant number, since it is smaller than the sum of its proper divisors (68913294).

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

51949506 is a wasteful number, since it uses less digits than its factorization.

51949506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176718 (or 176711 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 51949506 is about 7207.6005716188. The cubic root of 51949506 is about 373.1302628260.

The spelling of 51949506 in words is "fifty-one million, nine hundred forty-nine thousand, five hundred six".