53091725 has 6 divisors (see below), whose sum is σ = 65833770. Its totient is φ = 42473360.

The previous prime is 53091691. The next prime is 53091733. The reversal of 53091725 is 52719035.

53091725 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 3 ways, for example, as 5929 + 53085796 = 77^2 + 7286^2 .

It is not a de Polignac number, because 53091725 - 2⁸ = 53091469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53091691 and 53091700.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1061810 + ... + 1061859.

It is an arithmetic number, because the mean of its divisors is an integer number (10972295).

Almost surely, 2^53091725 is an apocalyptic number.

It is an amenable number.

53091725 is a deficient number, since it is larger than the sum of its proper divisors (12742045).

53091725 is a wasteful number, since it uses less digits than its factorization.

53091725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123679 (or 2123674 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 53091725 is about 7286.4068648409. The cubic root of 53091725 is about 375.8451456976.

The spelling of 53091725 in words is "fifty-three million, ninety-one thousand, seven hundred twenty-five".