725567630 has 32 divisors (see below), whose sum is σ = 1377129600. Its totient is φ = 274478112.

The previous prime is 725567597. The next prime is 725567639. The reversal of 725567630 is 36765527.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725567639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119201 + ... + 125139.

It is an arithmetic number, because the mean of its divisors is an integer number (43035300).

Almost surely, 2^725567630 is an apocalyptic number.

725567630 is a deficient number, since it is larger than the sum of its proper divisors (651561970).

725567630 is a wasteful number, since it uses less digits than its factorization.

725567630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6608.

The product of its (nonzero) digits is 264600, while the sum is 41.

The square root of 725567630 is about 26936.3625977971. The cubic root of 725567630 is about 898.5852794069.

The spelling of 725567630 in words is "seven hundred twenty-five million, five hundred sixty-seven thousand, six hundred thirty".