52057658 has 4 divisors (see below), whose sum is σ = 78086490. Its totient is φ = 26028828.

The previous prime is 52057657. The next prime is 52057661. The reversal of 52057658 is 85675025.

52057658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 46963609 + 5094049 = 6853^2 + 2257^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52057657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13014413 + ... + 13014416.

Almost surely, 2^52057658 is an apocalyptic number.

52057658 is a deficient number, since it is larger than the sum of its proper divisors (26028832).

52057658 is a wasteful number, since it uses less digits than its factorization.

52057658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26028831.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 52057658 is about 7215.0993063159. The cubic root of 52057658 is about 373.3890192942.

The spelling of 52057658 in words is "fifty-two million, fifty-seven thousand, six hundred fifty-eight".