68455 has 4 divisors (see below), whose sum is σ = 82152. Its totient is φ = 54760.

The previous prime is 68449. The next prime is 68473. The reversal of 68455 is 55486.

68455 = T₅₂ + T₅₃ + ... + T₈₁.

68455 = 115² + 116² + ... + 119².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55486 = 2 ⋅27743.

It is not a de Polignac number, because 68455 - 2³ = 68447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6841 + ... + 6850.

It is an arithmetic number, because the mean of its divisors is an integer number (20538).

2⁶⁸⁴⁵⁵ is an apocalyptic number.

68455 is a deficient number, since it is larger than the sum of its proper divisors (13697).

68455 is a wasteful number, since it uses less digits than its factorization.

68455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13696.

The product of its digits is 4800, while the sum is 28.

The square root of 68455 is about 261.6390643616. The cubic root of 68455 is about 40.9073856379.

It can be divided in two parts, 6845 and 5, that multiplied together give a square (34225 = 185²).

The spelling of 68455 in words is "sixty-eight thousand, four hundred fifty-five".