725550555 has 16 divisors (see below), whose sum is σ = 1189196064. Its totient is φ = 377521920.

The previous prime is 725550541. The next prime is 725550557. The reversal of 725550555 is 555055527.

It is a happy number.

It is not a de Polignac number, because 725550555 - 2⁵ = 725550523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725550557) 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, 589264 + ... + 590493.

It is an arithmetic number, because the mean of its divisors is an integer number (74324754).

Almost surely, 2^725550555 is an apocalyptic number.

725550555 is a deficient number, since it is larger than the sum of its proper divisors (463645509).

725550555 is a wasteful number, since it uses less digits than its factorization.

725550555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179806.

The product of its (nonzero) digits is 218750, while the sum is 39.

The square root of 725550555 is about 26936.0456451945. The cubic root of 725550555 is about 898.5782304596.

The spelling of 725550555 in words is "seven hundred twenty-five million, five hundred fifty thousand, five hundred fifty-five".