51125150 has 12 divisors (see below), whose sum is σ = 95092872. Its totient is φ = 20450040.

The previous prime is 51125149. The next prime is 51125177. The reversal of 51125150 is 5152115.

It is a happy number.

51125150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51125150² = 5227561925045000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

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 5 ways as a sum of consecutive naturals, for example, 511202 + ... + 511301.

It is an arithmetic number, because the mean of its divisors is an integer number (7924406).

Almost surely, 2^51125150 is an apocalyptic number.

51125150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51125150 is a deficient number, since it is larger than the sum of its proper divisors (43967722).

51125150 is a wasteful number, since it uses less digits than its factorization.

51125150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022515 (or 1022510 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 51125150 is about 7150.1853122839. The cubic root of 51125150 is about 371.1460690001.

Adding to 51125150 its reverse (5152115), we get a palindrome (56277265).

The spelling of 51125150 in words is "fifty-one million, one hundred twenty-five thousand, one hundred fifty".