654796548025 has 9 divisors (see below), whose sum is σ = 811952736591. Its totient is φ = 523834001640.

The previous prime is 654796547987. The next prime is 654796548041. The reversal of 654796548025 is 520845697456.

The square root of 654796548025 is 809195.

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

It can be written as a sum of positive squares in only one way, i.e., 235726757289 + 419069790736 = 485517^2 + 647356^2 .

It is not a de Polignac number, because 654796548025 - 2¹⁵ = 654796515257 is a prime.

It is a super-2 number, since 2×654796548025² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3965056 + ... + 4126894.

Almost surely, 2^654796548025 is an apocalyptic number.

654796548025 is the 809195-th square number.

654796548025 is the 404598-th centered octagonal number.

It is an amenable number.

654796548025 is a deficient number, since it is larger than the sum of its proper divisors (157156188566).

654796548025 is an frugal number, since it uses more digits than its factorization.

654796548025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323688 (or 161844 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 61.

The spelling of 654796548025 in words is "six hundred fifty-four billion, seven hundred ninety-six million, five hundred forty-eight thousand, twenty-five".