1305023055 has 32 divisors (see below), whose sum is σ = 2468620800. Its totient is φ = 576008832.

The previous prime is 1305023053. The next prime is 1305023063. The reversal of 1305023055 is 5503205031.

It is not a de Polignac number, because 1305023055 - 2¹ = 1305023053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305023051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211245 + ... + 217334.

It is an arithmetic number, because the mean of its divisors is an integer number (77144400).

Almost surely, 2^1305023055 is an apocalyptic number.

1305023055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1305023055 is a deficient number, since it is larger than the sum of its proper divisors (1163597745).

1305023055 is a wasteful number, since it uses less digits than its factorization.

1305023055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428623.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 1305023055 is about 36125.1028372239. The cubic root of 1305023055 is about 1092.7967499383.

Adding to 1305023055 its reverse (5503205031), we get a palindrome (6808228086).

The spelling of 1305023055 in words is "one billion, three hundred five million, twenty-three thousand, fifty-five".