722540325 has 48 divisors (see below), whose sum is σ = 1296542016. Its totient is φ = 352934400.

The previous prime is 722540323. The next prime is 722540327. The reversal of 722540325 is 523045227.

It is an interprime number because it is at equal distance from previous prime (722540323) and next prime (722540327).

It is not a de Polignac number, because 722540325 - 2¹ = 722540323 is a prime.

It is a super-2 number, since 2×722540325² = 1044129042502211250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 722540292 and 722540301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722540321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124897 + ... + 130553.

It is an arithmetic number, because the mean of its divisors is an integer number (27011292).

Almost surely, 2^722540325 is an apocalyptic number.

722540325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

722540325 is a deficient number, since it is larger than the sum of its proper divisors (574001691).

722540325 is a wasteful number, since it uses less digits than its factorization.

722540325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5814 (or 5809 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 722540325 is about 26880.1102118276. The cubic root of 722540325 is about 897.3338069019. Note that the first 3 decimals are identical.

The spelling of 722540325 in words is "seven hundred twenty-two million, five hundred forty thousand, three hundred twenty-five".