68525645 has 8 divisors (see below), whose sum is σ = 82529304. Its totient is φ = 54621504.

The previous prime is 68525641. The next prime is 68525651. The reversal of 68525645 is 54652586.

It can be written as a sum of positive squares in 4 ways, for example, as 361 + 68525284 = 19^2 + 8278^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68525645 - 2² = 68525641 is a prime.

It is a super-3 number, since 3×68525645³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68525641) 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 7 ways as a sum of consecutive naturals, for example, 23354 + ... + 26123.

It is an arithmetic number, because the mean of its divisors is an integer number (10316163).

Almost surely, 2^68525645 is an apocalyptic number.

It is an amenable number.

68525645 is a deficient number, since it is larger than the sum of its proper divisors (14003659).

68525645 is a wasteful number, since it uses less digits than its factorization.

68525645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49759.

The product of its digits is 288000, while the sum is 41.

The square root of 68525645 is about 8278.0218047550. The cubic root of 68525645 is about 409.2145282900.

The spelling of 68525645 in words is "sixty-eight million, five hundred twenty-five thousand, six hundred forty-five".