725223351 has 4 divisors (see below), whose sum is σ = 966964472. Its totient is φ = 483482232.

The previous prime is 725223341. The next prime is 725223361. The reversal of 725223351 is 153322527.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (725223341) and next prime (725223361).

It is not a de Polignac number, because 725223351 - 2⁶ = 725223287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725223341) 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, 120870556 + ... + 120870561.

It is an arithmetic number, because the mean of its divisors is an integer number (241741118).

Almost surely, 2^725223351 is an apocalyptic number.

725223351 is a deficient number, since it is larger than the sum of its proper divisors (241741121).

725223351 is a wasteful number, since it uses less digits than its factorization.

725223351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241741120.

The product of its digits is 12600, while the sum is 30.

The square root of 725223351 is about 26929.9712402371. The cubic root of 725223351 is about 898.4431318559.

Adding to 725223351 its reverse (153322527), we get a palindrome (878545878).

It can be divided in two parts, 7252 and 23351, that added together give a palindrome (30603).

The spelling of 725223351 in words is "seven hundred twenty-five million, two hundred twenty-three thousand, three hundred fifty-one".