253300545 has 24 divisors (see below), whose sum is σ = 441605736. Its totient is φ = 134308608.

The previous prime is 253300513. The next prime is 253300547. The reversal of 253300545 is 545003352.

It can be written as a sum of positive squares in 4 ways, for example, as 9659664 + 243640881 = 3108^2 + 15609^2 .

It is not a de Polignac number, because 253300545 - 2⁵ = 253300513 is a prime.

It is a super-2 number, since 2×253300545² = 128322332194594050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253300547) 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 23 ways as a sum of consecutive naturals, for example, 8484 + ... + 24053.

It is an arithmetic number, because the mean of its divisors is an integer number (18400239).

Almost surely, 2^253300545 is an apocalyptic number.

It is an amenable number.

253300545 is a deficient number, since it is larger than the sum of its proper divisors (188305191).

253300545 is a wasteful number, since it uses less digits than its factorization.

253300545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32721 (or 32718 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 253300545 is about 15915.4184676370. The cubic root of 253300545 is about 632.7206976659.

Adding to 253300545 its reverse (545003352), we get a palindrome (798303897).

The spelling of 253300545 in words is "two hundred fifty-three million, three hundred thousand, five hundred forty-five".