725530826 has 16 divisors (see below), whose sum is σ = 1093538880. Its totient is φ = 361022880.

The previous prime is 725530823. The next prime is 725530829. The reversal of 725530826 is 628035527.

It is an interprime number because it is at equal distance from previous prime (725530823) and next prime (725530829).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 725530826.

It is not an unprimeable number, because it can be changed into a prime (725530823) 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, 479411 + ... + 480921.

It is an arithmetic number, because the mean of its divisors is an integer number (68346180).

Almost surely, 2^725530826 is an apocalyptic number.

725530826 is a deficient number, since it is larger than the sum of its proper divisors (368008054).

725530826 is a wasteful number, since it uses less digits than its factorization.

725530826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 725530826 is about 26935.6794233968. The cubic root of 725530826 is about 898.5700857431.

The spelling of 725530826 in words is "seven hundred twenty-five million, five hundred thirty thousand, eight hundred twenty-six".