725553276 has 192 divisors, whose sum is σ = 2089866240. Its totient is φ = 191600640.

The previous prime is 725553271. The next prime is 725553281. The reversal of 725553276 is 672355527.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (725553271) and next prime (725553281).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725553271) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8152240 + ... + 8152328.

It is an arithmetic number, because the mean of its divisors is an integer number (10884720).

Almost surely, 2^725553276 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 725553276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044933120).

725553276 is an abundant number, since it is smaller than the sum of its proper divisors (1364312964).

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

725553276 is a wasteful number, since it uses less digits than its factorization.

725553276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 242 counting only the distinct ones).

The product of its digits is 441000, while the sum is 42.

The square root of 725553276 is about 26936.0961536745. The cubic root of 725553276 is about 898.5793537575.

The spelling of 725553276 in words is "seven hundred twenty-five million, five hundred fifty-three thousand, two hundred seventy-six".