125250305 has 8 divisors (see below), whose sum is σ = 159141672. Its totient is φ = 94306048.

The previous prime is 125250287. The next prime is 125250343. The reversal of 125250305 is 503052521.

It can be written as a sum of positive squares in 4 ways, for example, as 42094144 + 83156161 = 6488^2 + 9119^2 .

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 125250305 - 2¹⁶ = 125184769 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian 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, 736682 + ... + 736851.

It is an arithmetic number, because the mean of its divisors is an integer number (19892709).

Almost surely, 2^125250305 is an apocalyptic number.

It is an amenable number.

125250305 is a deficient number, since it is larger than the sum of its proper divisors (33891367).

125250305 is a wasteful number, since it uses less digits than its factorization.

125250305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473555.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 125250305 is about 11191.5282691865. The cubic root of 125250305 is about 500.3335174827. Note that the first 3 decimals are identical.

The spelling of 125250305 in words is "one hundred twenty-five million, two hundred fifty thousand, three hundred five".