2115235505 has 4 divisors (see below), whose sum is σ = 2538282612. Its totient is φ = 1692188400.

The previous prime is 2115235481. The next prime is 2115235511. The reversal of 2115235505 is 5055325112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1141358656 + 973876849 = 33784^2 + 31207^2 .

It is not a de Polignac number, because 2115235505 - 2³⁰ = 1041493681 is a prime.

It is a super-2 number, since 2×2115235505² = 8948442483225210050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211523546 + ... + 211523555.

It is an arithmetic number, because the mean of its divisors is an integer number (634570653).

Almost surely, 2^2115235505 is an apocalyptic number.

It is an amenable number.

2115235505 is a deficient number, since it is larger than the sum of its proper divisors (423047107).

2115235505 is an equidigital number, since it uses as much as digits as its factorization.

2115235505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423047106.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 2115235505 is about 45991.6895210428. The cubic root of 2115235505 is about 1283.6685740629.

The spelling of 2115235505 in words is "two billion, one hundred fifteen million, two hundred thirty-five thousand, five hundred five".