68514455 has 4 divisors (see below), whose sum is σ = 82217352. Its totient is φ = 54811560.

The previous prime is 68514449. The next prime is 68514463. The reversal of 68514455 is 55441586.

It is a happy number.

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

It is not a de Polignac number, because 68514455 - 2¹² = 68510359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 6851441 + ... + 6851450.

It is an arithmetic number, because the mean of its divisors is an integer number (20554338).

Almost surely, 2^68514455 is an apocalyptic number.

68514455 is a deficient number, since it is larger than the sum of its proper divisors (13702897).

68514455 is a wasteful number, since it uses less digits than its factorization.

68514455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13702896.

The product of its digits is 96000, while the sum is 38.

The square root of 68514455 is about 8277.3458910450. The cubic root of 68514455 is about 409.1922526401.

The spelling of 68514455 in words is "sixty-eight million, five hundred fourteen thousand, four hundred fifty-five".