725450 has 24 divisors (see below), whose sum is σ = 1473120. Its totient is φ = 263600.

The previous prime is 725449. The next prime is 725479. The reversal of 725450 is 54527.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110 + ... + 1209.

It is an arithmetic number, because the mean of its divisors is an integer number (61380).

2⁷²⁵⁴⁵⁰ is an apocalyptic number.

725450 is an abundant number, since it is smaller than the sum of its proper divisors (747670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725450 is a wasteful number, since it uses less digits than its factorization.

725450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 725450 is about 851.7335264037. The cubic root of 725450 is about 89.8536716831.

Adding to 725450 its reverse (54527), we get a palindrome (779977).

The spelling of 725450 in words is "seven hundred twenty-five thousand, four hundred fifty".