10069555725 has 36 divisors (see below), whose sum is σ = 18077520916. Its totient is φ = 5357975040.

The previous prime is 10069555721. The next prime is 10069555751. The reversal of 10069555725 is 52755596001.

10069555725 is a `hidden beast` number, since 1 + 0 + 0 + 6 + 95 + 557 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 349764804 + 9719790921 = 18702^2 + 98589^2 .

It is not a de Polignac number, because 10069555725 - 2² = 10069555721 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10069555721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45747 + ... + 149103.

Almost surely, 2^10069555725 is an apocalyptic number.

10069555725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10069555725 is a deficient number, since it is larger than the sum of its proper divisors (8007965191).

10069555725 is a wasteful number, since it uses less digits than its factorization.

10069555725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103806 (or 103798 counting only the distinct ones).

The product of its (nonzero) digits is 472500, while the sum is 45.

The spelling of 10069555725 in words is "ten billion, sixty-nine million, five hundred fifty-five thousand, seven hundred twenty-five".