253640570 has 16 divisors (see below), whose sum is σ = 456744960. Its totient is φ = 101413584.

The previous prime is 253640507. The next prime is 253640579. The reversal of 253640570 is 75046352.

253640570 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (253640579) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 32291 + ... + 39369.

It is an arithmetic number, because the mean of its divisors is an integer number (28546560).

Almost surely, 2^253640570 is an apocalyptic number.

253640570 is a deficient number, since it is larger than the sum of its proper divisors (203104390).

253640570 is a wasteful number, since it uses less digits than its factorization.

253640570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10669.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 253640570 is about 15926.0971364613. The cubic root of 253640570 is about 633.0036877929.

The spelling of 253640570 in words is "two hundred fifty-three million, six hundred forty thousand, five hundred seventy".