51152977 has 2 divisors, whose sum is σ = 51152978. Its totient is φ = 51152976.

The previous prime is 51152971. The next prime is 51152987. The reversal of 51152977 is 77925115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37344321 + 13808656 = 6111^2 + 3716^2 .

It is a cyclic number.

It is not a de Polignac number, because 51152977 - 2¹¹ = 51150929 is a prime.

It is not a weakly prime, because it can be changed into another prime (51152971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25576488 + 25576489.

It is an arithmetic number, because the mean of its divisors is an integer number (25576489).

Almost surely, 2^51152977 is an apocalyptic number.

It is an amenable number.

51152977 is a deficient number, since it is larger than the sum of its proper divisors (1).

51152977 is an equidigital number, since it uses as much as digits as its factorization.

51152977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22050, while the sum is 37.

The square root of 51152977 is about 7152.1309411951. The cubic root of 51152977 is about 371.2133940410.

The spelling of 51152977 in words is "fifty-one million, one hundred fifty-two thousand, nine hundred seventy-seven".