725512106 has 32 divisors (see below), whose sum is σ = 1209733056. Its totient is φ = 323568000.

The previous prime is 725512103. The next prime is 725512147. The reversal of 725512106 is 601215527.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (725512103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337796 + ... + 339936.

It is an arithmetic number, because the mean of its divisors is an integer number (37804158).

Almost surely, 2^725512106 is an apocalyptic number.

725512106 is a deficient number, since it is larger than the sum of its proper divisors (484220950).

725512106 is a wasteful number, since it uses less digits than its factorization.

725512106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 725512106 is about 26935.3319266721. The cubic root of 725512106 is about 898.5623574353.

The spelling of 725512106 in words is "seven hundred twenty-five million, five hundred twelve thousand, one hundred six".