51205150 has 12 divisors (see below), whose sum is σ = 95241672. Its totient is φ = 20482040.

The previous prime is 51205127. The next prime is 51205163. The reversal of 51205150 is 5150215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 512002 + ... + 512101.

It is an arithmetic number, because the mean of its divisors is an integer number (7936806).

Almost surely, 2^51205150 is an apocalyptic number.

51205150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51205150 is a deficient number, since it is larger than the sum of its proper divisors (44036522).

51205150 is a wasteful number, since it uses less digits than its factorization.

51205150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024115 (or 1024110 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 51205150 is about 7155.7773861405. Note that the first 3 decimals coincide. The cubic root of 51205150 is about 371.3395563667.

Adding to 51205150 its reverse (5150215), we get a palindrome (56355365).

The spelling of 51205150 in words is "fifty-one million, two hundred five thousand, one hundred fifty".