51530150 has 24 divisors (see below), whose sum is σ = 109539120. Its totient is φ = 17667360.

The previous prime is 51530137. The next prime is 51530161. The reversal of 51530150 is 5103515.

It is a happy number.

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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73265 + ... + 73964.

It is an arithmetic number, because the mean of its divisors is an integer number (4564130).

Almost surely, 2^51530150 is an apocalyptic number.

51530150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51530150 is an abundant number, since it is smaller than the sum of its proper divisors (58008970).

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

51530150 is a wasteful number, since it uses less digits than its factorization.

51530150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147248 (or 147243 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 51530150 is about 7178.4503898822. The cubic root of 51530150 is about 372.1235329891.

Adding to 51530150 its reverse (5103515), we get a palindrome (56633665).

The spelling of 51530150 in words is "fifty-one million, five hundred thirty thousand, one hundred fifty".