2125522949 has 4 divisors (see below), whose sum is σ = 2318752320. Its totient is φ = 1932293580.

The previous prime is 2125522933. The next prime is 2125522963. The reversal of 2125522949 is 9492255212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2125522949 - 2⁴ = 2125522933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125522249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96614669 + ... + 96614690.

It is an arithmetic number, because the mean of its divisors is an integer number (579688080).

Almost surely, 2^2125522949 is an apocalyptic number.

It is an amenable number.

2125522949 is a deficient number, since it is larger than the sum of its proper divisors (193229371).

2125522949 is a wasteful number, since it uses less digits than its factorization.

2125522949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193229370.

The product of its digits is 129600, while the sum is 41.

The square root of 2125522949 is about 46103.3941158349. The cubic root of 2125522949 is about 1285.7462493564.

The spelling of 2125522949 in words is "two billion, one hundred twenty-five million, five hundred twenty-two thousand, nine hundred forty-nine".