855054719 has 4 divisors (see below), whose sum is σ = 878164344. Its totient is φ = 831945096.

The previous prime is 855054703. The next prime is 855054721. The reversal of 855054719 is 917450558.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917450558 = 2 ⋅458725279.

It is a cyclic number.

It is not a de Polignac number, because 855054719 - 2⁴ = 855054703 is a prime.

It is a super-2 number, since 2×855054719² = 1462237144968337922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 855054719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855054919) 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, 11554757 + ... + 11554830.

It is an arithmetic number, because the mean of its divisors is an integer number (219541086).

Almost surely, 2^855054719 is an apocalyptic number.

855054719 is a deficient number, since it is larger than the sum of its proper divisors (23109625).

855054719 is a wasteful number, since it uses less digits than its factorization.

855054719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23109624.

The product of its (nonzero) digits is 252000, while the sum is 44.

The square root of 855054719 is about 29241.3186946143. The cubic root of 855054719 is about 949.1422429369.

The spelling of 855054719 in words is "eight hundred fifty-five million, fifty-four thousand, seven hundred nineteen".