1355006505 has 16 divisors (see below), whose sum is σ = 2295540864. Its totient is φ = 680160000.

The previous prime is 1355006501. The next prime is 1355006507. The reversal of 1355006505 is 5056005531.

It is not a de Polignac number, because 1355006505 - 2² = 1355006501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1355006501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2656621 + ... + 2657130.

It is an arithmetic number, because the mean of its divisors is an integer number (143471304).

Almost surely, 2^1355006505 is an apocalyptic number.

1355006505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1355006505 is a deficient number, since it is larger than the sum of its proper divisors (940534359).

1355006505 is a wasteful number, since it uses less digits than its factorization.

1355006505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5313776.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 1355006505 is about 36810.4129968682. The cubic root of 1355006505 is about 1106.5739954315.

The spelling of 1355006505 in words is "one billion, three hundred fifty-five million, six thousand, five hundred five".