2291849525 has 24 divisors (see below), whose sum is σ = 3259672320. Its totient is φ = 1565847360.

The previous prime is 2291849519. The next prime is 2291849557. The reversal of 2291849525 is 5259481922.

It is not a de Polignac number, because 2291849525 - 2¹⁸ = 2291587381 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2291849525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24836 + ... + 72114.

It is an arithmetic number, because the mean of its divisors is an integer number (135819680).

Almost surely, 2^2291849525 is an apocalyptic number.

2291849525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2291849525 is a deficient number, since it is larger than the sum of its proper divisors (967822795).

2291849525 is a wasteful number, since it uses less digits than its factorization.

2291849525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47573 (or 47568 counting only the distinct ones).

The product of its digits is 518400, while the sum is 47.

The square root of 2291849525 is about 47873.2652427219. The cubic root of 2291849525 is about 1318.4450478209.

The spelling of 2291849525 in words is "two billion, two hundred ninety-one million, eight hundred forty-nine thousand, five hundred twenty-five".