52011945 has 12 divisors (see below), whose sum is σ = 90154116. Its totient is φ = 27739680.

The previous prime is 52011943. The next prime is 52011977. The reversal of 52011945 is 54911025.

52011945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41062464 + 10949481 = 6408^2 + 3309^2 .

It is not a de Polignac number, because 52011945 - 2¹ = 52011943 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52011943) 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 in 11 ways as a sum of consecutive naturals, for example, 577866 + ... + 577955.

It is an arithmetic number, because the mean of its divisors is an integer number (7512843).

Almost surely, 2^52011945 is an apocalyptic number.

It is an amenable number.

52011945 is a deficient number, since it is larger than the sum of its proper divisors (38142171).

52011945 is a wasteful number, since it uses less digits than its factorization.

52011945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155832 (or 1155829 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 52011945 is about 7211.9307401000. The cubic root of 52011945 is about 373.2796935230.

The spelling of 52011945 in words is "fifty-two million, eleven thousand, nine hundred forty-five".