253565930 has 16 divisors (see below), whose sum is σ = 456606504. Its totient is φ = 101384640.

The previous prime is 253565911. The next prime is 253565933. The reversal of 253565930 is 39565352.

It can be written as a sum of positive squares in 4 ways, for example, as 237252409 + 16313521 = 15403^2 + 4039^2 .

It is not an unprimeable number, because it can be changed into a prime (253565933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35240 + ... + 41820.

Almost surely, 2^253565930 is an apocalyptic number.

253565930 is a deficient number, since it is larger than the sum of its proper divisors (203040574).

253565930 is a wasteful number, since it uses less digits than its factorization.

253565930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10441.

The product of its (nonzero) digits is 121500, while the sum is 38.

The square root of 253565930 is about 15923.7536403952. The cubic root of 253565930 is about 632.9415893800.

The spelling of 253565930 in words is "two hundred fifty-three million, five hundred sixty-five thousand, nine hundred thirty".