51193901 has 8 divisors (see below), whose sum is σ = 55901664. Its totient is φ = 46495120.

The previous prime is 51193853. The next prime is 51193913. The reversal of 51193901 is 10939115.

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

It is a cyclic number.

It is not a de Polignac number, because 51193901 - 2¹⁰ = 51192877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51193991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16586 + ... + 19428.

It is an arithmetic number, because the mean of its divisors is an integer number (6987708).

Almost surely, 2^51193901 is an apocalyptic number.

It is an amenable number.

51193901 is a deficient number, since it is larger than the sum of its proper divisors (4707763).

51193901 is a wasteful number, since it uses less digits than its factorization.

51193901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491.

The product of its (nonzero) digits is 1215, while the sum is 29.

The square root of 51193901 is about 7154.9913347257. The cubic root of 51193901 is about 371.3123618065.

The spelling of 51193901 in words is "fifty-one million, one hundred ninety-three thousand, nine hundred one".