725554361 has 8 divisors (see below), whose sum is σ = 832925184. Its totient is φ = 619113600.

The previous prime is 725554337. The next prime is 725554493. The reversal of 725554361 is 163455527.

It is a happy number.

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

It is not a de Polignac number, because 725554361 - 2²⁶ = 658445497 is a prime.

It is a super-2 number, since 2×725554361² = 1052858261532236642, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (725554301) 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, 230840 + ... + 233961.

It is an arithmetic number, because the mean of its divisors is an integer number (104115648).

Almost surely, 2^725554361 is an apocalyptic number.

It is an amenable number.

725554361 is a deficient number, since it is larger than the sum of its proper divisors (107370823).

725554361 is a wasteful number, since it uses less digits than its factorization.

725554361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465031.

The product of its digits is 126000, while the sum is 38.

The square root of 725554361 is about 26936.1162939277. The cubic root of 725554361 is about 898.5798016723.

It can be divided in two parts, 7255 and 54361, that added together give a palindrome (61616).

The spelling of 725554361 in words is "seven hundred twenty-five million, five hundred fifty-four thousand, three hundred sixty-one".