51262805 has 8 divisors (see below), whose sum is σ = 67107744. Its totient is φ = 37282000.

The previous prime is 51262801. The next prime is 51262811. The reversal of 51262805 is 50826215.

51262805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51262805 - 2² = 51262801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51262801) 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, 465971 + ... + 466080.

It is an arithmetic number, because the mean of its divisors is an integer number (8388468).

Almost surely, 2^51262805 is an apocalyptic number.

51262805 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51262805 is a deficient number, since it is larger than the sum of its proper divisors (15844939).

51262805 is a wasteful number, since it uses less digits than its factorization.

51262805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932067.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 51262805 is about 7159.8048157754. The cubic root of 51262805 is about 371.4788753720.

The spelling of 51262805 in words is "fifty-one million, two hundred sixty-two thousand, eight hundred five".