51093393 has 8 divisors (see below), whose sum is σ = 73364928. Its totient is φ = 31442064.

The previous prime is 51093377. The next prime is 51093397. The reversal of 51093393 is 39339015.

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

It is not a de Polignac number, because 51093393 - 2⁴ = 51093377 is a prime.

It is a super-2 number, since 2×51093393² = 5221069616504898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51093397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655005 + ... + 655082.

It is an arithmetic number, because the mean of its divisors is an integer number (9170616).

Almost surely, 2^51093393 is an apocalyptic number.

It is an amenable number.

51093393 is a deficient number, since it is larger than the sum of its proper divisors (22271535).

51093393 is a wasteful number, since it uses less digits than its factorization.

51093393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310103.

The product of its (nonzero) digits is 10935, while the sum is 33.

The square root of 51093393 is about 7147.9642556465. The cubic root of 51093393 is about 371.0692058060.

The spelling of 51093393 in words is "fifty-one million, ninety-three thousand, three hundred ninety-three".