682221455 has 4 divisors (see below), whose sum is σ = 818665752. Its totient is φ = 545777160.

The previous prime is 682221451. The next prime is 682221461. The reversal of 682221455 is 554122286.

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

It is not a de Polignac number, because 682221455 - 2² = 682221451 is a prime.

It is a super-2 number, since 2×682221455² = 930852227324634050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682221451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68222141 + ... + 68222150.

It is an arithmetic number, because the mean of its divisors is an integer number (204666438).

Almost surely, 2^682221455 is an apocalyptic number.

682221455 is a deficient number, since it is larger than the sum of its proper divisors (136444297).

682221455 is a wasteful number, since it uses less digits than its factorization.

682221455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136444296.

The product of its digits is 38400, while the sum is 35.

The square root of 682221455 is about 26119.3693453728. The cubic root of 682221455 is about 880.3224778012.

The spelling of 682221455 in words is "six hundred eighty-two million, two hundred twenty-one thousand, four hundred fifty-five".