250515065 has 8 divisors (see below), whose sum is σ = 300744960. Its totient is φ = 200327472.

The previous prime is 250515059. The next prime is 250515073. The reversal of 250515065 is 560515052.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250515065 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, 4382 + ... + 22808.

It is an arithmetic number, because the mean of its divisors is an integer number (37593120).

Almost surely, 2^250515065 is an apocalyptic number.

It is an amenable number.

250515065 is a deficient number, since it is larger than the sum of its proper divisors (50229895).

250515065 is a wasteful number, since it uses less digits than its factorization.

250515065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21151.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 250515065 is about 15827.6677056350. The cubic root of 250515065 is about 630.3928556690.

The spelling of 250515065 in words is "two hundred fifty million, five hundred fifteen thousand, sixty-five".