1305530053 has 8 divisors (see below), whose sum is σ = 1320891840. Its totient is φ = 1290183840.

The previous prime is 1305530021. The next prime is 1305530059. The reversal of 1305530053 is 3500355031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1305530053 - 2⁵ = 1305530021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305530059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306448 + ... + 310678.

It is an arithmetic number, because the mean of its divisors is an integer number (165111480).

Almost surely, 2^1305530053 is an apocalyptic number.

It is an amenable number.

1305530053 is a deficient number, since it is larger than the sum of its proper divisors (15361787).

1305530053 is an equidigital number, since it uses as much as digits as its factorization.

1305530053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7787.

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 1305530053 is about 36132.1194091905. The cubic root of 1305530053 is about 1092.9382478302.

Adding to 1305530053 its reverse (3500355031), we get a palindrome (4805885084).

The spelling of 1305530053 in words is "one billion, three hundred five million, five hundred thirty thousand, fifty-three".