51344977 has 2 divisors, whose sum is σ = 51344978. Its totient is φ = 51344976.

The previous prime is 51344971. The next prime is 51344987. The reversal of 51344977 is 77944315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47900241 + 3444736 = 6921^2 + 1856^2 .

It is a cyclic number.

It is not a de Polignac number, because 51344977 - 2⁷ = 51344849 is a prime.

It is not a weakly prime, because it can be changed into another prime (51344971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25672488 + 25672489.

It is an arithmetic number, because the mean of its divisors is an integer number (25672489).

Almost surely, 2^51344977 is an apocalyptic number.

It is an amenable number.

51344977 is a deficient number, since it is larger than the sum of its proper divisors (1).

51344977 is an equidigital number, since it uses as much as digits as its factorization.

51344977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 40.

The square root of 51344977 is about 7165.5409425946. The cubic root of 51344977 is about 371.6772574575.

The spelling of 51344977 in words is "fifty-one million, three hundred forty-four thousand, nine hundred seventy-seven".