725011770 has 64 divisors (see below), whose sum is σ = 1990803456. Its totient is φ = 165533760.

The previous prime is 725011741. The next prime is 725011783. The reversal of 725011770 is 77110527.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307737 + ... + 310083.

It is an arithmetic number, because the mean of its divisors is an integer number (31106304).

Almost surely, 2^725011770 is an apocalyptic number.

725011770 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

725011770 is an abundant number, since it is smaller than the sum of its proper divisors (1265791686).

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

725011770 is a wasteful number, since it uses less digits than its factorization.

725011770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835.

The product of its (nonzero) digits is 3430, while the sum is 30.

The square root of 725011770 is about 26926.0425981985. The cubic root of 725011770 is about 898.3557509659.

The spelling of 725011770 in words is "seven hundred twenty-five million, eleven thousand, seven hundred seventy".