68581125 has 24 divisors (see below), whose sum is σ = 123630936. Its totient is φ = 36576000.

The previous prime is 68581103. The next prime is 68581153. The reversal of 68581125 is 52118586.

68581125 is a `hidden beast` number, since 68 + 581 + 12 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 20223009 + 48358116 = 4497^2 + 6954^2 .

It is not a de Polignac number, because 68581125 - 2⁶ = 68581061 is a prime.

It is a super-3 number, since 3×68581125³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68581125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29356 + ... + 31605.

It is an arithmetic number, because the mean of its divisors is an integer number (5151289).

Almost surely, 2^68581125 is an apocalyptic number.

It is an amenable number.

68581125 is a deficient number, since it is larger than the sum of its proper divisors (55049811).

68581125 is a wasteful number, since it uses less digits than its factorization.

68581125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60982 (or 60969 counting only the distinct ones).

The product of its digits is 19200, while the sum is 36.

The square root of 68581125 is about 8281.3721689102. The cubic root of 68581125 is about 409.3249351203.

It can be divided in two parts, 685 and 81125, that added together give a triangular number (81810 = T₄₀₄).

The spelling of 68581125 in words is "sixty-eight million, five hundred eighty-one thousand, one hundred twenty-five".