725273892 has 144 divisors (see below), whose sum is σ = 2258403840. Its totient is φ = 200491200.

The previous prime is 725273869. The next prime is 725273893. The reversal of 725273892 is 298372527.

725273892 is a `hidden beast` number, since 7 + 2 + 527 + 38 + 92 = 666.

725273892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725273893) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 161842 + ... + 166262.

It is an arithmetic number, because the mean of its divisors is an integer number (15683360).

Almost surely, 2^725273892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725273892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1129201920).

725273892 is an abundant number, since it is smaller than the sum of its proper divisors (1533129948).

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

725273892 is a wasteful number, since it uses less digits than its factorization.

725273892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479 (or 4464 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 725273892 is about 26930.9096021653. The cubic root of 725273892 is about 898.4640022813.

The spelling of 725273892 in words is "seven hundred twenty-five million, two hundred seventy-three thousand, eight hundred ninety-two".