250065601 has 4 divisors (see below), whose sum is σ = 256164804. Its totient is φ = 243966400.

The previous prime is 250065581. The next prime is 250065649. The reversal of 250065601 is 106560052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116640000 + 133425601 = 10800^2 + 11551^2 .

It is a de Polignac number, because none of the positive numbers 2^k-250065601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250065671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3049540 + ... + 3049621.

It is an arithmetic number, because the mean of its divisors is an integer number (64041201).

Almost surely, 2^250065601 is an apocalyptic number.

It is an amenable number.

250065601 is a deficient number, since it is larger than the sum of its proper divisors (6099203).

250065601 is an equidigital number, since it uses as much as digits as its factorization.

250065601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6099202.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 250065601 is about 15813.4626505393. The cubic root of 250065601 is about 630.0156215157.

The spelling of 250065601 in words is "two hundred fifty million, sixty-five thousand, six hundred one".