51370065 has 32 divisors (see below), whose sum is σ = 92188800. Its totient is φ = 27138240.

The previous prime is 51370051. The next prime is 51370093. The reversal of 51370065 is 56007315.

51370065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51370065 - 2⁹ = 51369553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 12970 + ... + 16460.

It is an arithmetic number, because the mean of its divisors is an integer number (2880900).

Almost surely, 2^51370065 is an apocalyptic number.

It is an amenable number.

51370065 is a deficient number, since it is larger than the sum of its proper divisors (40818735).

51370065 is a wasteful number, since it uses less digits than its factorization.

51370065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614 (or 3608 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 51370065 is about 7167.2913293656. The cubic root of 51370065 is about 371.7377834736.

The spelling of 51370065 in words is "fifty-one million, three hundred seventy thousand, sixty-five".