64168725 has 24 divisors (see below), whose sum is σ = 106466400. Its totient is φ = 34102720.

The previous prime is 64168723. The next prime is 64168751. The reversal of 64168725 is 52786146.

64168725 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 64168725 - 2¹ = 64168723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64168721) 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 23 ways as a sum of consecutive naturals, for example, 22426 + ... + 25124.

It is an arithmetic number, because the mean of its divisors is an integer number (4436100).

Almost surely, 2^64168725 is an apocalyptic number.

It is an amenable number.

64168725 is a deficient number, since it is larger than the sum of its proper divisors (42297675).

64168725 is a wasteful number, since it uses less digits than its factorization.

64168725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029 (or 3024 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 64168725 is about 8010.5383714205. The cubic root of 64168725 is about 400.3512019694.

The spelling of 64168725 in words is "sixty-four million, one hundred sixty-eight thousand, seven hundred twenty-five".