69540327025 has 27 divisors (see below), whose sum is σ = 93396340611. Its totient is φ = 51340199040.

The previous prime is 69540326981. The next prime is 69540327029. The reversal of 69540327025 is 52072304596.

The square root of 69540327025 is 263705.

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

It can be written as a sum of positive squares in 13 ways, for example, as 64748364849 + 4791962176 = 254457^2 + 69224^2 .

It is not a de Polignac number, because 69540327025 - 2¹¹ = 69540324977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69540327029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 17138797 + ... + 17142853.

Almost surely, 2^69540327025 is an apocalyptic number.

69540327025 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

69540327025 is the 263705-th square number.

69540327025 is the 131853-rd centered octagonal number.

It is an amenable number.

69540327025 is a deficient number, since it is larger than the sum of its proper divisors (23856013586).

69540327025 is an frugal number, since it uses more digits than its factorization.

69540327025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8150 (or 4075 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 69540327025 in words is "sixty-nine billion, five hundred forty million, three hundred twenty-seven thousand, twenty-five".