51251068 has 24 divisors (see below), whose sum is σ = 100490544. Its totient is φ = 22665600.

The previous prime is 51251063. The next prime is 51251069. The reversal of 51251068 is 86015215.

51251068 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 2×51251068² = 5253343942281248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51251063) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14113 + ... + 17368.

It is an arithmetic number, because the mean of its divisors is an integer number (4187106).

Almost surely, 2^51251068 is an apocalyptic number.

It is an amenable number.

51251068 is a deficient number, since it is larger than the sum of its proper divisors (49239476).

51251068 is a wasteful number, since it uses less digits than its factorization.

51251068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31533 (or 31531 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 51251068 is about 7158.9851236052. The cubic root of 51251068 is about 371.4505222586.

It can be divided in two parts, 512510 and 68, that added together give a triangular number (512578 = T₁₀₁₂).

The spelling of 51251068 in words is "fifty-one million, two hundred fifty-one thousand, sixty-eight".