68225291 has 8 divisors (see below), whose sum is σ = 71349504. Its totient is φ = 65114280.

The previous prime is 68225281. The next prime is 68225303. The reversal of 68225291 is 19252286.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68225291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68225221) 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, 8156 + ... + 14246.

It is an arithmetic number, because the mean of its divisors is an integer number (8918688).

Almost surely, 2^68225291 is an apocalyptic number.

68225291 is a deficient number, since it is larger than the sum of its proper divisors (3124213).

68225291 is a wasteful number, since it uses less digits than its factorization.

68225291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6601.

The product of its digits is 17280, while the sum is 35.

The square root of 68225291 is about 8259.8602288416. The cubic root of 68225291 is about 408.6157780800.

The spelling of 68225291 in words is "sixty-eight million, two hundred twenty-five thousand, two hundred ninety-one".