725107251 has 16 divisors (see below), whose sum is σ = 1055253888. Its totient is φ = 439228800.

The previous prime is 725107249. The next prime is 725107259. The reversal of 725107251 is 152701527.

It is not a de Polignac number, because 725107251 - 2¹ = 725107249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725107259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75216 + ... + 84306.

It is an arithmetic number, because the mean of its divisors is an integer number (65953368).

Almost surely, 2^725107251 is an apocalyptic number.

725107251 is a deficient number, since it is larger than the sum of its proper divisors (330146637).

725107251 is a wasteful number, since it uses less digits than its factorization.

725107251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11522.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 725107251 is about 26927.8155630939. The cubic root of 725107251 is about 898.3951857925.

Adding to 725107251 its reverse (152701527), we get a palindrome (877808778).

The spelling of 725107251 in words is "seven hundred twenty-five million, one hundred seven thousand, two hundred fifty-one".