125008805 has 8 divisors (see below), whose sum is σ = 150379800. Its totient is φ = 99760896.

The previous prime is 125008799. The next prime is 125008817. The reversal of 125008805 is 508800521.

It can be written as a sum of positive squares in 4 ways, for example, as 10647169 + 114361636 = 3263^2 + 10694^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125008805 - 2⁴ = 125008789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28520 + ... + 32609.

It is an arithmetic number, because the mean of its divisors is an integer number (18797475).

Almost surely, 2^125008805 is an apocalyptic number.

It is an amenable number.

125008805 is a deficient number, since it is larger than the sum of its proper divisors (25370995).

125008805 is an equidigital number, since it uses as much as digits as its factorization.

125008805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61543.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 125008805 is about 11180.7336521357. The cubic root of 125008805 is about 500.0117397244.

The spelling of 125008805 in words is "one hundred twenty-five million, eight thousand, eight hundred five".