51904113 has 8 divisors (see below), whose sum is σ = 71592000. Its totient is φ = 33409488.

The previous prime is 51904109. The next prime is 51904117. The reversal of 51904113 is 31140915.

It is an interprime number because it is at equal distance from previous prime (51904109) and next prime (51904117).

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

It is not a de Polignac number, because 51904113 - 2² = 51904109 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51904117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298213 + ... + 298386.

It is an arithmetic number, because the mean of its divisors is an integer number (8949000).

Almost surely, 2^51904113 is an apocalyptic number.

It is an amenable number.

51904113 is a deficient number, since it is larger than the sum of its proper divisors (19687887).

51904113 is a wasteful number, since it uses less digits than its factorization.

51904113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596631.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 51904113 is about 7204.4509159269. The cubic root of 51904113 is about 373.0215518936.

The spelling of 51904113 in words is "fifty-one million, nine hundred four thousand, one hundred thirteen".