51533150 has 24 divisors (see below), whose sum is σ = 97895520. Its totient is φ = 20173760.

The previous prime is 51533143. The next prime is 51533161. The reversal of 51533150 is 5133515.

51533150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 8615 + ... + 13314.

It is an arithmetic number, because the mean of its divisors is an integer number (4078980).

Almost surely, 2^51533150 is an apocalyptic number.

51533150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51533150 is a deficient number, since it is larger than the sum of its proper divisors (46362370).

51533150 is a wasteful number, since it uses less digits than its factorization.

51533150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21988 (or 21983 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 51533150 is about 7178.6593455881. The cubic root of 51533150 is about 372.1307543210.

Adding to 51533150 its reverse (5133515), we get a palindrome (56666665).

The spelling of 51533150 in words is "fifty-one million, five hundred thirty-three thousand, one hundred fifty".