1520113255 has 8 divisors (see below), whose sum is σ = 1824656400. Its totient is φ = 1215743616.

The previous prime is 1520113249. The next prime is 1520113307. The reversal of 1520113255 is 5523110251.

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 1520113255 - 2³ = 1520113247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23250 + ... + 59839.

It is an arithmetic number, because the mean of its divisors is an integer number (228082050).

Almost surely, 2^1520113255 is an apocalyptic number.

1520113255 is a deficient number, since it is larger than the sum of its proper divisors (304543145).

1520113255 is an equidigital number, since it uses as much as digits as its factorization.

1520113255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86753.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1520113255 is about 38988.6298169094. The cubic root of 1520113255 is about 1149.8079717174.

The spelling of 1520113255 in words is "one billion, five hundred twenty million, one hundred thirteen thousand, two hundred fifty-five".