2194554525 has 24 divisors (see below), whose sum is σ = 3632443104. Its totient is φ = 1169102400.

The previous prime is 2194554469. The next prime is 2194554559. The reversal of 2194554525 is 5254554912.

It is not a de Polignac number, because 2194554525 - 2¹⁷ = 2194423453 is a prime.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 51895 + ... + 84155.

It is an arithmetic number, because the mean of its divisors is an integer number (151351796).

Almost surely, 2^2194554525 is an apocalyptic number.

2194554525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2194554525 is a deficient number, since it is larger than the sum of its proper divisors (1437888579).

2194554525 is a wasteful number, since it uses less digits than its factorization.

2194554525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33181 (or 33176 counting only the distinct ones).

The product of its digits is 360000, while the sum is 42.

The square root of 2194554525 is about 46846.0726742381. The cubic root of 2194554525 is about 1299.5174787156.

The spelling of 2194554525 in words is "two billion, one hundred ninety-four million, five hundred fifty-four thousand, five hundred twenty-five".