51008793 has 32 divisors (see below), whose sum is σ = 76876800. Its totient is φ = 29816640.

The previous prime is 51008791. The next prime is 51008801. The reversal of 51008793 is 39780015.

It is not a de Polignac number, because 51008793 - 2¹ = 51008791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (51008791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145983 + ... + 146331.

It is an arithmetic number, because the mean of its divisors is an integer number (2402400).

Almost surely, 2^51008793 is an apocalyptic number.

It is an amenable number.

51008793 is a deficient number, since it is larger than the sum of its proper divisors (25868007).

51008793 is a wasteful number, since it uses less digits than its factorization.

51008793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 51008793 is about 7142.0440351485. The cubic root of 51008793 is about 370.8642882659.

The spelling of 51008793 in words is "fifty-one million, eight thousand, seven hundred ninety-three".