253580545 has 4 divisors (see below), whose sum is σ = 304296660. Its totient is φ = 202864432.

The previous prime is 253580539. The next prime is 253580549. The reversal of 253580545 is 545085352.

It is a happy number.

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 60481729 + 193098816 = 7777^2 + 13896^2 .

It is a cyclic number.

It is not a de Polignac number, because 253580545 - 2⁵ = 253580513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253580549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25358050 + ... + 25358059.

It is an arithmetic number, because the mean of its divisors is an integer number (76074165).

Almost surely, 2^253580545 is an apocalyptic number.

It is an amenable number.

253580545 is a deficient number, since it is larger than the sum of its proper divisors (50716115).

253580545 is an equidigital number, since it uses as much as digits as its factorization.

253580545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50716114.

The product of its (nonzero) digits is 120000, while the sum is 37.

The square root of 253580545 is about 15924.2125394005. The cubic root of 253580545 is about 632.9537496146.

The spelling of 253580545 in words is "two hundred fifty-three million, five hundred eighty thousand, five hundred forty-five".