51263065 has 32 divisors (see below), whose sum is σ = 72921600. Its totient is φ = 34574400.

The previous prime is 51263053. The next prime is 51263077. The reversal of 51263065 is 56036215.

51263065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51263053) and next prime (51263077).

It is a de Polignac number, because none of the positive numbers 2^k-51263065 is a prime.

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, 121555 + ... + 121975.

It is an arithmetic number, because the mean of its divisors is an integer number (2278800).

Almost surely, 2^51263065 is an apocalyptic number.

It is an amenable number.

51263065 is a deficient number, since it is larger than the sum of its proper divisors (21658535).

51263065 is an equidigital number, since it uses as much as digits as its factorization.

51263065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 51263065 is about 7159.8229726719. The cubic root of 51263065 is about 371.4795034059.

The spelling of 51263065 in words is "fifty-one million, two hundred sixty-three thousand, sixty-five".