250555965 has 16 divisors (see below), whose sum is σ = 437334336. Its totient is φ = 121481600.

The previous prime is 250555957. The next prime is 250555973. The reversal of 250555965 is 569555052.

It is an interprime number because it is at equal distance from previous prime (250555957) and next prime (250555973).

It is not a de Polignac number, because 250555965 - 2³ = 250555957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759096 + ... + 759425.

It is an arithmetic number, because the mean of its divisors is an integer number (27333396).

Almost surely, 2^250555965 is an apocalyptic number.

It is an amenable number.

250555965 is a deficient number, since it is larger than the sum of its proper divisors (186778371).

250555965 is a wasteful number, since it uses less digits than its factorization.

250555965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518540.

The product of its (nonzero) digits is 337500, while the sum is 42.

The square root of 250555965 is about 15828.9596941808. The cubic root of 250555965 is about 630.4271605451.

The spelling of 250555965 in words is "two hundred fifty million, five hundred fifty-five thousand, nine hundred sixty-five".