3553455121 has 2 divisors, whose sum is σ = 3553455122. Its totient is φ = 3553455120.

The previous prime is 3553455079. The next prime is 3553455149. The reversal of 3553455121 is 1215543553.

3553455121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2486518225 + 1066936896 = 49865^2 + 32664^2 .

It is a cyclic number.

It is not a de Polignac number, because 3553455121 - 2²¹ = 3551357969 is a prime.

It is a super-2 number, since 2×3553455121² = 25254086593922249282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3553455151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1776727560 + 1776727561.

It is an arithmetic number, because the mean of its divisors is an integer number (1776727561).

Almost surely, 2^3553455121 is an apocalyptic number.

It is an amenable number.

3553455121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3553455121 is an equidigital number, since it uses as much as digits as its factorization.

3553455121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 34.

The square root of 3553455121 is about 59610.8641188836. The cubic root of 3553455121 is about 1525.9850478665.

Adding to 3553455121 its reverse (1215543553), we get a palindrome (4768998674).

The spelling of 3553455121 in words is "three billion, five hundred fifty-three million, four hundred fifty-five thousand, one hundred twenty-one".