68725244025 has 27 divisors (see below), whose sum is σ = 123101591821. Its totient is φ = 36651366240.

The previous prime is 68725244023. The next prime is 68725244041. The reversal of 68725244025 is 52044252786.

The square root of 68725244025 is 262155.

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

68725244025 is a `hidden beast` number, since 6 + 87 + 2 + 524 + 40 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 24342552441 + 44382691584 = 156021^2 + 210672^2 .

It is not a de Polignac number, because 68725244025 - 2¹ = 68725244023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68725244023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3923587 + ... + 3941063.

Almost surely, 2^68725244025 is an apocalyptic number.

68725244025 is the 262155-th square number.

68725244025 is the 131078-th centered octagonal number.

It is an amenable number.

68725244025 is a deficient number, since it is larger than the sum of its proper divisors (54376347796).

68725244025 is an frugal number, since it uses more digits than its factorization.

68725244025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34970 (or 17485 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 45.

The spelling of 68725244025 in words is "sixty-eight billion, seven hundred twenty-five million, two hundred forty-four thousand, twenty-five".