725336001 has 54 divisors (see below), whose sum is σ = 1198259478. Its totient is φ = 422547840.

The previous prime is 725335993. The next prime is 725336033. The reversal of 725336001 is 100633527.

It is a happy number.

725336001 is a `hidden beast` number, since 7 + 2 + 53 + 3 + 600 + 1 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 46785600 + 678550401 = 6840^2 + 26049^2 .

It is not a de Polignac number, because 725336001 - 2³ = 725335993 is a prime.

It is a super-2 number, since 2×725336001² = 1052224628693344002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725336701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 548421 + ... + 549741.

Almost surely, 2^725336001 is an apocalyptic number.

It is an amenable number.

725336001 is a deficient number, since it is larger than the sum of its proper divisors (472923477).

725336001 is a wasteful number, since it uses less digits than its factorization.

725336001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 725336001 is about 26932.0626948624. The cubic root of 725336001 is about 898.4896482745.

Adding to 725336001 its reverse (100633527), we get a palindrome (825969528).

The spelling of 725336001 in words is "seven hundred twenty-five million, three hundred thirty-six thousand, one".