68501005 has 4 divisors (see below), whose sum is σ = 82201212. Its totient is φ = 54800800.

The previous prime is 68501003. The next prime is 68501009. The reversal of 68501005 is 50010586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50010586 = 2 ⋅25005293.

It can be written as a sum of positive squares in 2 ways, for example, as 53275401 + 15225604 = 7299^2 + 3902^2 .

It is not a de Polignac number, because 68501005 - 2¹ = 68501003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68501003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6850096 + ... + 6850105.

It is an arithmetic number, because the mean of its divisors is an integer number (20550303).

Almost surely, 2^68501005 is an apocalyptic number.

It is an amenable number.

68501005 is a deficient number, since it is larger than the sum of its proper divisors (13700207).

68501005 is a wasteful number, since it uses less digits than its factorization.

68501005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13700206.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 68501005 is about 8276.5333926711. The cubic root of 68501005 is about 409.1654748554.

The spelling of 68501005 in words is "sixty-eight million, five hundred one thousand, five".