2125562644 has 6 divisors (see below), whose sum is σ = 3719734634. Its totient is φ = 1062781320.

The previous prime is 2125562611. The next prime is 2125562651. The reversal of 2125562644 is 4462655212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1667088900 + 458473744 = 40830^2 + 21412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265695327 + ... + 265695334.

Almost surely, 2^2125562644 is an apocalyptic number.

It is an amenable number.

2125562644 is a deficient number, since it is larger than the sum of its proper divisors (1594171990).

2125562644 is a wasteful number, since it uses less digits than its factorization.

2125562644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531390665 (or 531390663 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

The square root of 2125562644 is about 46103.8246135828. The cubic root of 2125562644 is about 1285.7542532502.

The spelling of 2125562644 in words is "two billion, one hundred twenty-five million, five hundred sixty-two thousand, six hundred forty-four".