51779907 has 6 divisors (see below), whose sum is σ = 74793212. Its totient is φ = 34519932.

The previous prime is 51779899. The next prime is 51779929. The reversal of 51779907 is 70997715.

51779907 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 51779907 - 2³ = 51779899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51779407) 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 5 ways as a sum of consecutive naturals, for example, 2876653 + ... + 2876670.

Almost surely, 2^51779907 is an apocalyptic number.

51779907 is a deficient number, since it is larger than the sum of its proper divisors (23013305).

51779907 is a wasteful number, since it uses less digits than its factorization.

51779907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5753329 (or 5753326 counting only the distinct ones).

The product of its (nonzero) digits is 138915, while the sum is 45.

The square root of 51779907 is about 7195.8256649255. The cubic root of 51779907 is about 372.7237686780.

The spelling of 51779907 in words is "fifty-one million, seven hundred seventy-nine thousand, nine hundred seven".