725137210 has 32 divisors (see below), whose sum is σ = 1579461120. Its totient is φ = 233993472.

The previous prime is 725137163. The next prime is 725137229. The reversal of 725137210 is 12731527.

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 15 ways as a sum of consecutive naturals, for example, 303490 + ... + 305869.

It is an arithmetic number, because the mean of its divisors is an integer number (49358160).

Almost surely, 2^725137210 is an apocalyptic number.

725137210 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

725137210 is an abundant number, since it is smaller than the sum of its proper divisors (854323910).

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

725137210 is a wasteful number, since it uses less digits than its factorization.

725137210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609390.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 725137210 is about 26928.3718408670. The cubic root of 725137210 is about 898.4075585142.

Adding to 725137210 its reverse (12731527), we get a palindrome (737868737).

The spelling of 725137210 in words is "seven hundred twenty-five million, one hundred thirty-seven thousand, two hundred ten".