7285005855625 has 45 divisors (see below), whose sum is σ = 9198332690547. Its totient is φ = 5767815312000.

The previous prime is 7285005855613. The next prime is 7285005855653. The reversal of 7285005855625 is 5265585005827.

The square root of 7285005855625 is 2699075.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 6634802307721 + 650203547904 = 2575811^2 + 806352^2 .

It is not a de Polignac number, because 7285005855625 - 2²⁹ = 7284468984713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7285005855625.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 7220025121 + ... + 7220026129.

Almost surely, 2^{7285005855625} is an apocalyptic number.

7285005855625 is the 2699075-th square number.

7285005855625 is the 1349538-th centered octagonal number.

It is an amenable number.

7285005855625 is a deficient number, since it is larger than the sum of its proper divisors (1913326834922).

7285005855625 is an frugal number, since it uses more digits than its factorization.

7285005855625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 33600000, while the sum is 58.

The spelling of 7285005855625 in words is "seven trillion, two hundred eighty-five billion, five million, eight hundred fifty-five thousand, six hundred twenty-five".