725225511 has 8 divisors (see below), whose sum is σ = 967125744. Its totient is φ = 483404480.

The previous prime is 725225509. The next prime is 725225513. The reversal of 725225511 is 115522527.

It is an interprime number because it is at equal distance from previous prime (725225509) and next prime (725225513).

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

It is a cyclic number.

It is not a de Polignac number, because 725225511 - 2¹ = 725225509 is a prime.

It is a super-2 number, since 2×725225511² = 1051904083610422242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725225513) 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 7 ways as a sum of consecutive naturals, for example, 6595 + ... + 38651.

It is an arithmetic number, because the mean of its divisors is an integer number (120890718).

Almost surely, 2^725225511 is an apocalyptic number.

725225511 is a deficient number, since it is larger than the sum of its proper divisors (241900233).

725225511 is a wasteful number, since it uses less digits than its factorization.

725225511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39601.

The product of its digits is 7000, while the sum is 30.

The square root of 725225511 is about 26930.0113442234. The cubic root of 725225511 is about 898.4440238272. Note that the first 3 decimals are identical.

The spelling of 725225511 in words is "seven hundred twenty-five million, two hundred twenty-five thousand, five hundred eleven".