725325772555 has 32 divisors (see below), whose sum is σ = 940549968000. Its totient is φ = 534926825472.

The previous prime is 725325772537. The next prime is 725325772637. The reversal of 725325772555 is 555277523527.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 725325772555 - 2¹⁹ = 725325248267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 725325772496 and 725325772505.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2564101 + ... + 2832889.

It is an arithmetic number, because the mean of its divisors is an integer number (29392186500).

Almost surely, 2^725325772555 is an apocalyptic number.

725325772555 is a deficient number, since it is larger than the sum of its proper divisors (215224195445).

725325772555 is a wasteful number, since it uses less digits than its factorization.

725325772555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269463.

The product of its digits is 25725000, while the sum is 55.

The spelling of 725325772555 in words is "seven hundred twenty-five billion, three hundred twenty-five million, seven hundred seventy-two thousand, five hundred fifty-five".