555213251023 has 2 divisors, whose sum is σ = 555213251024. Its totient is φ = 555213251022.

The previous prime is 555213251011. The next prime is 555213251027. The reversal of 555213251023 is 320152312555.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555213251023 is a prime.

It is a super-2 number, since 2×555213251023² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 555213251023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (555213251027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277606625511 + 277606625512.

It is an arithmetic number, because the mean of its divisors is an integer number (277606625512).

Almost surely, 2^555213251023 is an apocalyptic number.

555213251023 is a deficient number, since it is larger than the sum of its proper divisors (1).

555213251023 is an equidigital number, since it uses as much as digits as its factorization.

555213251023 is an evil number, because the sum of its binary digits is even.

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

Adding to 555213251023 its reverse (320152312555), we get a palindrome (875365563578).

The spelling of 555213251023 in words is "five hundred fifty-five billion, two hundred thirteen million, two hundred fifty-one thousand, twenty-three".