2113219825 has 6 divisors (see below), whose sum is σ = 2620392614. Its totient is φ = 1690575840.

The previous prime is 2113219807. The next prime is 2113219831. The reversal of 2113219825 is 5289123112.

It can be written as a sum of positive squares in 3 ways, for example, as 563065441 + 1550154384 = 23729^2 + 39372^2 .

It is not a de Polignac number, because 2113219825 - 2⁵ = 2113219793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42264372 + ... + 42264421.

Almost surely, 2^2113219825 is an apocalyptic number.

2113219825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2113219825 is a deficient number, since it is larger than the sum of its proper divisors (507172789).

2113219825 is an equidigital number, since it uses as much as digits as its factorization.

2113219825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84528803 (or 84528798 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 2113219825 is about 45969.7707738466. The cubic root of 2113219825 is about 1283.2606939639.

The spelling of 2113219825 in words is "two billion, one hundred thirteen million, two hundred nineteen thousand, eight hundred twenty-five".