2554521121 has 2 divisors, whose sum is σ = 2554521122. Its totient is φ = 2554521120.

The previous prime is 2554521089. The next prime is 2554521131. The reversal of 2554521121 is 1211254552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2402960400 + 151560721 = 49020^2 + 12311^2 .

It is a cyclic number.

It is not a de Polignac number, because 2554521121 - 2⁵ = 2554521089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2554521121.

It is not a weakly prime, because it can be changed into another prime (2554521131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277260560 + 1277260561.

It is an arithmetic number, because the mean of its divisors is an integer number (1277260561).

Almost surely, 2^2554521121 is an apocalyptic number.

It is an amenable number.

2554521121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2554521121 is an equidigital number, since it uses as much as digits as its factorization.

2554521121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4000, while the sum is 28.

The square root of 2554521121 is about 50542.2706355779. The cubic root of 2554521121 is about 1367.0041487070.

Adding to 2554521121 its reverse (1211254552), we get a palindrome (3765775673).

The spelling of 2554521121 in words is "two billion, five hundred fifty-four million, five hundred twenty-one thousand, one hundred twenty-one".