725548494 has 64 divisors (see below), whose sum is σ = 1641295872. Its totient is φ = 211912800.

The previous prime is 725548493. The next prime is 725548517. The reversal of 725548494 is 494845527.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725548493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206089 + ... + 209579.

It is an arithmetic number, because the mean of its divisors is an integer number (25645248).

Almost surely, 2^725548494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725548494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820647936).

725548494 is an abundant number, since it is smaller than the sum of its proper divisors (915747378).

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

725548494 is a wasteful number, since it uses less digits than its factorization.

725548494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621.

The product of its digits is 1612800, while the sum is 48.

The square root of 725548494 is about 26936.0073878814. The cubic root of 725548494 is about 898.5773796245.

The spelling of 725548494 in words is "seven hundred twenty-five million, five hundred forty-eight thousand, four hundred ninety-four".