51779941 has 2 divisors, whose sum is σ = 51779942. Its totient is φ = 51779940.

The previous prime is 51779929. The next prime is 51779953. The reversal of 51779941 is 14997715.

It is a balanced prime because it is at equal distance from previous prime (51779929) and next prime (51779953).

It can be written as a sum of positive squares in only one way, i.e., 27867841 + 23912100 = 5279^2 + 4890^2 .

It is a cyclic number.

It is not a de Polignac number, because 51779941 - 2⁷ = 51779813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51779971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25889970 + 25889971.

It is an arithmetic number, because the mean of its divisors is an integer number (25889971).

Almost surely, 2^51779941 is an apocalyptic number.

It is an amenable number.

51779941 is a deficient number, since it is larger than the sum of its proper divisors (1).

51779941 is an equidigital number, since it uses as much as digits as its factorization.

51779941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 43.

The square root of 51779941 is about 7195.8280274059. The cubic root of 51779941 is about 372.7238502579.

The spelling of 51779941 in words is "fifty-one million, seven hundred seventy-nine thousand, nine hundred forty-one".