725771130 has 32 divisors (see below), whose sum is σ = 1990687104. Its totient is φ = 165890496.

The previous prime is 725771129. The next prime is 725771131. The reversal of 725771130 is 31177527.

725771130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (725771129) and next prime (725771131).

It is a junction number, because it is equal to n+sod(n) for n = 725771091 and 725771100.

It is not an unprimeable number, because it can be changed into a prime (725771131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1727817 + ... + 1728236.

It is an arithmetic number, because the mean of its divisors is an integer number (62208972).

Almost surely, 2^725771130 is an apocalyptic number.

725771130 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

725771130 is an abundant number, since it is smaller than the sum of its proper divisors (1264915974).

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

725771130 is a wasteful number, since it uses less digits than its factorization.

725771130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3456070.

The product of its (nonzero) digits is 10290, while the sum is 33.

The square root of 725771130 is about 26940.1397546486. The cubic root of 725771130 is about 898.6692803112.

It can be divided in two parts, 7257 and 71130, that added together give a palindrome (78387).

The spelling of 725771130 in words is "seven hundred twenty-five million, seven hundred seventy-one thousand, one hundred thirty".