2185501305 has 32 divisors (see below), whose sum is σ = 3829633920. Its totient is φ = 1057697280.

The previous prime is 2185501261. The next prime is 2185501321. The reversal of 2185501305 is 5031055812.

It is not a de Polignac number, because 2185501305 - 2¹³ = 2185493113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83476 + ... + 106485.

It is an arithmetic number, because the mean of its divisors is an integer number (119676060).

Almost surely, 2^2185501305 is an apocalyptic number.

It is an amenable number.

2185501305 is a deficient number, since it is larger than the sum of its proper divisors (1644132615).

2185501305 is a wasteful number, since it uses less digits than its factorization.

2185501305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190041.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 2185501305 is about 46749.3455034399. The cubic root of 2185501305 is about 1297.7280445323.

The spelling of 2185501305 in words is "two billion, one hundred eighty-five million, five hundred one thousand, three hundred five".