1513320555 has 8 divisors (see below), whose sum is σ = 2421312912. Its totient is φ = 807104288.

The previous prime is 1513320533. The next prime is 1513320631. The reversal of 1513320555 is 5550233151.

1513320555 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 1513320555 - 2⁸ = 1513320299 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50444004 + ... + 50444033.

It is an arithmetic number, because the mean of its divisors is an integer number (302664114).

Almost surely, 2^1513320555 is an apocalyptic number.

1513320555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1513320555 is a deficient number, since it is larger than the sum of its proper divisors (907992357).

1513320555 is a wasteful number, since it uses less digits than its factorization.

1513320555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100888045.

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

The square root of 1513320555 is about 38901.4209894703. The cubic root of 1513320555 is about 1148.0927567227.

The spelling of 1513320555 in words is "one billion, five hundred thirteen million, three hundred twenty thousand, five hundred fifty-five".