53423977 has 2 divisors, whose sum is σ = 53423978. Its totient is φ = 53423976.

The previous prime is 53423971. The next prime is 53423999. The reversal of 53423977 is 77932435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50851161 + 2572816 = 7131^2 + 1604^2 .

It is a cyclic number.

It is not a de Polignac number, because 53423977 - 2¹⁵ = 53391209 is a prime.

It is not a weakly prime, because it can be changed into another prime (53423971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26711988 + 26711989.

It is an arithmetic number, because the mean of its divisors is an integer number (26711989).

Almost surely, 2^53423977 is an apocalyptic number.

It is an amenable number.

53423977 is a deficient number, since it is larger than the sum of its proper divisors (1).

53423977 is an equidigital number, since it uses as much as digits as its factorization.

53423977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 40.

The square root of 53423977 is about 7309.1707463980. The cubic root of 53423977 is about 376.6275382471.

The spelling of 53423977 in words is "fifty-three million, four hundred twenty-three thousand, nine hundred seventy-seven".