250565465 has 16 divisors (see below), whose sum is σ = 320704272. Its totient is φ = 187275264.

The previous prime is 250565411. The next prime is 250565479. The reversal of 250565465 is 564565052.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 546121 + 250019344 = 739^2 + 15812^2 .

It is not a de Polignac number, because 250565465 - 2⁸ = 250565209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887 + ... + 22403.

It is an arithmetic number, because the mean of its divisors is an integer number (20044017).

Almost surely, 2^250565465 is an apocalyptic number.

It is an amenable number.

250565465 is a deficient number, since it is larger than the sum of its proper divisors (70138807).

250565465 is a wasteful number, since it uses less digits than its factorization.

250565465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21676.

The product of its (nonzero) digits is 180000, while the sum is 38.

The square root of 250565465 is about 15829.2597742282. The cubic root of 250565465 is about 630.4351281361.

The spelling of 250565465 in words is "two hundred fifty million, five hundred sixty-five thousand, four hundred sixty-five".