2233804505557 has 2 divisors, whose sum is σ = 2233804505558. Its totient is φ = 2233804505556.

The previous prime is 2233804505509. The next prime is 2233804505587. The reversal of 2233804505557 is 7555054083322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1310656335921 + 923148169636 = 1144839^2 + 960806^2 .

It is a cyclic number.

It is not a de Polignac number, because 2233804505557 - 2²³ = 2233796116949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2233804505557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2233804505507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1116902252778 + 1116902252779.

It is an arithmetic number, because the mean of its divisors is an integer number (1116902252779).

Almost surely, 2^{2233804505557} is an apocalyptic number.

It is an amenable number.

2233804505557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2233804505557 is an equidigital number, since it uses as much as digits as its factorization.

2233804505557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040000, while the sum is 49.

Adding to 2233804505557 its reverse (7555054083322), we get a palindrome (9788858588879).

The spelling of 2233804505557 in words is "two trillion, two hundred thirty-three billion, eight hundred four million, five hundred five thousand, five hundred fifty-seven".