51948939 has 8 divisors (see below), whose sum is σ = 79160320. Its totient is φ = 29685096.

The previous prime is 51948937. The next prime is 51948979. The reversal of 51948939 is 93984915.

51948939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51948939 - 2¹ = 51948937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51948931) by changing a digit.

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, 1236859 + ... + 1236900.

It is an arithmetic number, because the mean of its divisors is an integer number (9895040).

Almost surely, 2^51948939 is an apocalyptic number.

51948939 is a deficient number, since it is larger than the sum of its proper divisors (27211381).

51948939 is a wasteful number, since it uses less digits than its factorization.

51948939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473769.

The product of its digits is 349920, while the sum is 48.

The square root of 51948939 is about 7207.5612380333. The cubic root of 51948939 is about 373.1289053179.

The spelling of 51948939 in words is "fifty-one million, nine hundred forty-eight thousand, nine hundred thirty-nine".