5552552451421 has 2 divisors, whose sum is σ = 5552552451422. Its totient is φ = 5552552451420.

The previous prime is 5552552451367. The next prime is 5552552451437. The reversal of 5552552451421 is 1241542552555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3033710480025 + 2518841971396 = 1741755^2 + 1587086^2 .

It is a cyclic number.

It is not a de Polignac number, because 5552552451421 - 2⁹ = 5552552450909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5552552451491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2776276225710 + 2776276225711.

It is an arithmetic number, because the mean of its divisors is an integer number (2776276225711).

Almost surely, 2^{5552552451421} is an apocalyptic number.

It is an amenable number.

5552552451421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5552552451421 is an equidigital number, since it uses as much as digits as its factorization.

5552552451421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2000000, while the sum is 46.

The spelling of 5552552451421 in words is "five trillion, five hundred fifty-two billion, five hundred fifty-two million, four hundred fifty-one thousand, four hundred twenty-one".