52778525 has 12 divisors (see below), whose sum is σ = 65745792. Its totient is φ = 42029040.

The previous prime is 52778483. The next prime is 52778527. The reversal of 52778525 is 52587725.

52778525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52778525 - 2⁸ = 52778269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52778527) 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, 842 + ... + 10308.

It is an arithmetic number, because the mean of its divisors is an integer number (5478816).

Almost surely, 2^52778525 is an apocalyptic number.

It is an amenable number.

52778525 is a deficient number, since it is larger than the sum of its proper divisors (12967267).

52778525 is a wasteful number, since it uses less digits than its factorization.

52778525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9700 (or 9695 counting only the distinct ones).

The product of its digits is 196000, while the sum is 41.

The square root of 52778525 is about 7264.8829997461. The cubic root of 52778525 is about 375.1046226601.

The spelling of 52778525 in words is "fifty-two million, seven hundred seventy-eight thousand, five hundred twenty-five".