250202561 has 4 divisors (see below), whose sum is σ = 285945792. Its totient is φ = 214459332.

The previous prime is 250202543. The next prime is 250202567. The reversal of 250202561 is 165202052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 250202561 - 2¹⁴ = 250186177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250202567) 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, 17871605 + ... + 17871618.

It is an arithmetic number, because the mean of its divisors is an integer number (71486448).

Almost surely, 2^250202561 is an apocalyptic number.

It is an amenable number.

250202561 is a deficient number, since it is larger than the sum of its proper divisors (35743231).

250202561 is an equidigital number, since it uses as much as digits as its factorization.

250202561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35743230.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 250202561 is about 15817.7925451057. The cubic root of 250202561 is about 630.1306195948.

The spelling of 250202561 in words is "two hundred fifty million, two hundred two thousand, five hundred sixty-one".