2553552121 has 2 divisors, whose sum is σ = 2553552122. Its totient is φ = 2553552120.

The previous prime is 2553552107. The next prime is 2553552149. The reversal of 2553552121 is 1212553552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2380366521 + 173185600 = 48789^2 + 13160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2553552121 is a prime.

It is not a weakly prime, because it can be changed into another prime (2553502121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276776060 + 1276776061.

It is an arithmetic number, because the mean of its divisors is an integer number (1276776061).

Almost surely, 2^2553552121 is an apocalyptic number.

It is an amenable number.

2553552121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2553552121 is an equidigital number, since it uses as much as digits as its factorization.

2553552121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15000, while the sum is 31.

The square root of 2553552121 is about 50532.6836908550. The cubic root of 2553552121 is about 1366.8312794448.

The spelling of 2553552121 in words is "two billion, five hundred fifty-three million, five hundred fifty-two thousand, one hundred twenty-one".