51993350 has 24 divisors (see below), whose sum is σ = 98298768. Its totient is φ = 20455200.

The previous prime is 51993323. The next prime is 51993353. The reversal of 51993350 is 5339915.

It is a self number, because there is not a number n which added to its sum of digits gives 51993350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51993353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5474 + ... + 11573.

It is an arithmetic number, because the mean of its divisors is an integer number (4095782).

Almost surely, 2^51993350 is an apocalyptic number.

51993350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51993350 is a deficient number, since it is larger than the sum of its proper divisors (46305418).

51993350 is a wasteful number, since it uses less digits than its factorization.

51993350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17120 (or 17115 counting only the distinct ones).

The product of its (nonzero) digits is 18225, while the sum is 35.

The square root of 51993350 is about 7210.6414416472. The cubic root of 51993350 is about 373.2352039783.

The spelling of 51993350 in words is "fifty-one million, nine hundred ninety-three thousand, three hundred fifty".