51065070 has 32 divisors (see below), whose sum is σ = 140064768. Its totient is φ = 11671968.

The previous prime is 51065057. The next prime is 51065071. The reversal of 51065070 is 7056015.

51065070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51065070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51065071) 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 15 ways as a sum of consecutive naturals, for example, 121374 + ... + 121793.

It is an arithmetic number, because the mean of its divisors is an integer number (4377024).

Almost surely, 2^51065070 is an apocalyptic number.

51065070 is an abundant number, since it is smaller than the sum of its proper divisors (88999698).

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

51065070 is a wasteful number, since it uses less digits than its factorization.

51065070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243184.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 51065070 is about 7145.9827875527. The cubic root of 51065070 is about 371.0006272345. Note that the first 3 decimals are identical.

The spelling of 51065070 in words is "fifty-one million, sixty-five thousand, seventy".