2125553387 has 2 divisors, whose sum is σ = 2125553388. Its totient is φ = 2125553386.

The previous prime is 2125553377. The next prime is 2125553413. The reversal of 2125553387 is 7833555212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2125553387 - 2⁶ = 2125553323 is a prime.

It is not a weakly prime, because it can be changed into another prime (2125553327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062776693 + 1062776694.

It is an arithmetic number, because the mean of its divisors is an integer number (1062776694).

Almost surely, 2^2125553387 is an apocalyptic number.

2125553387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125553387 is an equidigital number, since it uses as much as digits as its factorization.

2125553387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 41.

The square root of 2125553387 is about 46103.7242205009. The cubic root of 2125553387 is about 1285.7523867257.

The spelling of 2125553387 in words is "two billion, one hundred twenty-five million, five hundred fifty-three thousand, three hundred eighty-seven".