68925541 has 4 divisors (see below), whose sum is σ = 69079500. Its totient is φ = 68771584.

The previous prime is 68925539. The next prime is 68925553. The reversal of 68925541 is 14552986.

68925541 = 5870² + 5871².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34456900 + 34468641 = 5870^2 + 5871^2 .

It is a cyclic number.

It is not a de Polignac number, because 68925541 - 2¹ = 68925539 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68925494 and 68925503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68925341) 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 3 ways as a sum of consecutive naturals, for example, 76306 + ... + 77203.

It is an arithmetic number, because the mean of its divisors is an integer number (17269875).

Almost surely, 2^68925541 is an apocalyptic number.

68925541 is the 5871-st centered square number.

It is an amenable number.

68925541 is a deficient number, since it is larger than the sum of its proper divisors (153959).

68925541 is a wasteful number, since it uses less digits than its factorization.

68925541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153958.

The product of its digits is 86400, while the sum is 40.

The square root of 68925541 is about 8302.1407480240. The cubic root of 68925541 is about 410.0090043630.

The spelling of 68925541 in words is "sixty-eight million, nine hundred twenty-five thousand, five hundred forty-one".