68626501 has 8 divisors (see below), whose sum is σ = 72754200. Its totient is φ = 64508928.

The previous prime is 68626487. The next prime is 68626511. The reversal of 68626501 is 10562686.

It can be written as a sum of positive squares in 4 ways, for example, as 22372900 + 46253601 = 4730^2 + 6801^2 .

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 68626501 - 2⁷ = 68626373 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 (68626511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14925 + ... + 18973.

It is an arithmetic number, because the mean of its divisors is an integer number (9094275).

Almost surely, 2^68626501 is an apocalyptic number.

It is an amenable number.

68626501 is a deficient number, since it is larger than the sum of its proper divisors (4127699).

68626501 is a wasteful number, since it uses less digits than its factorization.

68626501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 68626501 is about 8284.1113584983. Note that the first 3 decimals coincide. The cubic root of 68626501 is about 409.4151904368.

The spelling of 68626501 in words is "sixty-eight million, six hundred twenty-six thousand, five hundred one".