51693150 has 24 divisors (see below), whose sum is σ = 128199384. Its totient is φ = 13784800.

The previous prime is 51693149. The next prime is 51693163. The reversal of 51693150 is 5139615.

51693150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 172161 + ... + 172460.

It is an arithmetic number, because the mean of its divisors is an integer number (5341641).

Almost surely, 2^51693150 is an apocalyptic number.

51693150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51693150 is an abundant number, since it is smaller than the sum of its proper divisors (76506234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51693150 is a wasteful number, since it uses less digits than its factorization.

51693150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344636 (or 344631 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 51693150 is about 7189.7948510371. The cubic root of 51693150 is about 372.5154866465.

The spelling of 51693150 in words is "fifty-one million, six hundred ninety-three thousand, one hundred fifty".