725021223 has 8 divisors (see below), whose sum is σ = 976080768. Its totient is φ = 478654584.

The previous prime is 725021197. The next prime is 725021263. The reversal of 725021223 is 322120527.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 725021223 - 2⁵ = 725021191 is a prime.

It is a super-3 number, since 3×725021223³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 725021193 and 725021202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725021263) 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 7 ways as a sum of consecutive naturals, for example, 1172865 + ... + 1173482.

It is an arithmetic number, because the mean of its divisors is an integer number (122010096).

Almost surely, 2^725021223 is an apocalyptic number.

725021223 is a deficient number, since it is larger than the sum of its proper divisors (251059545).

725021223 is a wasteful number, since it uses less digits than its factorization.

725021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346453.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 725021223 is about 26926.2181340046. The cubic root of 725021223 is about 898.3596553255.

The spelling of 725021223 in words is "seven hundred twenty-five million, twenty-one thousand, two hundred twenty-three".