725275515507 has 16 divisors (see below), whose sum is σ = 1023554488320. Its totient is φ = 455537973600.

The previous prime is 725275515491. The next prime is 725275515511. The reversal of 725275515507 is 705515572527.

It is not a de Polignac number, because 725275515507 - 2⁴ = 725275515491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725275515507.

It is not an unprimeable number, because it can be changed into a prime (725275515407) 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, 35139219 + ... + 35159852.

It is an arithmetic number, because the mean of its divisors is an integer number (63972155520).

Almost surely, 2^725275515507 is an apocalyptic number.

725275515507 is a deficient number, since it is larger than the sum of its proper divisors (298278972813).

725275515507 is a wasteful number, since it uses less digits than its factorization.

725275515507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70299274.

The product of its (nonzero) digits is 4287500, while the sum is 51.

The spelling of 725275515507 in words is "seven hundred twenty-five billion, two hundred seventy-five million, five hundred fifteen thousand, five hundred seven".