55412131013 has 2 divisors, whose sum is σ = 55412131014. Its totient is φ = 55412131012.

The previous prime is 55412131009. The next prime is 55412131039. The reversal of 55412131013 is 31013121455.

It is an a-pointer prime, because the next prime (55412131039) can be obtained adding 55412131013 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55318099204 + 94031809 = 235198^2 + 9697^2 .

It is a cyclic number.

It is not a de Polignac number, because 55412131013 - 2² = 55412131009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55412131003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27706065506 + 27706065507.

It is an arithmetic number, because the mean of its divisors is an integer number (27706065507).

Almost surely, 2^55412131013 is an apocalyptic number.

It is an amenable number.

55412131013 is a deficient number, since it is larger than the sum of its proper divisors (1).

55412131013 is an equidigital number, since it uses as much as digits as its factorization.

55412131013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 55412131013 its reverse (31013121455), we get a palindrome (86425252468).

The spelling of 55412131013 in words is "fifty-five billion, four hundred twelve million, one hundred thirty-one thousand, thirteen".