125055865 has 8 divisors (see below), whose sum is σ = 163709568. Its totient is φ = 90949680.

The previous prime is 125055839. The next prime is 125055881. The reversal of 125055865 is 568550521.

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

It is not a de Polignac number, because 125055865 - 2¹⁹ = 124531577 is a prime.

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, 1136817 + ... + 1136926.

It is an arithmetic number, because the mean of its divisors is an integer number (20463696).

Almost surely, 2^125055865 is an apocalyptic number.

It is an amenable number.

125055865 is a deficient number, since it is larger than the sum of its proper divisors (38653703).

125055865 is a wasteful number, since it uses less digits than its factorization.

125055865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273759.

The product of its (nonzero) digits is 60000, while the sum is 37.

The square root of 125055865 is about 11182.8379671709. The cubic root of 125055865 is about 500.0744755729.

The spelling of 125055865 in words is "one hundred twenty-five million, fifty-five thousand, eight hundred sixty-five".