68249455 has 8 divisors (see below), whose sum is σ = 82035792. Its totient is φ = 54508608.

The previous prime is 68249449. The next prime is 68249459. The reversal of 68249455 is 55494286.

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 68249455 - 2⁷ = 68249327 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 (68249459) 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, 7977 + ... + 14146.

It is an arithmetic number, because the mean of its divisors is an integer number (10254474).

Almost surely, 2^68249455 is an apocalyptic number.

68249455 is a deficient number, since it is larger than the sum of its proper divisors (13786337).

68249455 is a wasteful number, since it uses less digits than its factorization.

68249455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22745.

The product of its digits is 345600, while the sum is 43.

The square root of 68249455 is about 8261.3228359628. The cubic root of 68249455 is about 408.6640134976.

The spelling of 68249455 in words is "sixty-eight million, two hundred forty-nine thousand, four hundred fifty-five".