725019022219 has 4 divisors (see below), whose sum is σ = 725289251896. Its totient is φ = 724748792544.

The previous prime is 725019022213. The next prime is 725019022223. The reversal of 725019022219 is 912220910527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 912220910527 = 598789 ⋅1523443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725019022219 is a prime.

It is a super-2 number, since 2×725019022219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725019022213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135110814 + ... + 135116179.

It is an arithmetic number, because the mean of its divisors is an integer number (181322312974).

Almost surely, 2^725019022219 is an apocalyptic number.

725019022219 is a deficient number, since it is larger than the sum of its proper divisors (270229677).

725019022219 is a wasteful number, since it uses less digits than its factorization.

725019022219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270229676.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 725019022219 in words is "seven hundred twenty-five billion, nineteen million, twenty-two thousand, two hundred nineteen".