55533113 has 2 divisors, whose sum is σ = 55533114. Its totient is φ = 55533112.

The previous prime is 55533103. The next prime is 55533131. The reversal of 55533113 is 31133555.

Together with next prime (55533131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32569849 + 22963264 = 5707^2 + 4792^2 .

It is a cyclic number.

It is not a de Polignac number, because 55533113 - 2²⁰ = 54484537 is a prime.

It is not a weakly prime, because it can be changed into another prime (55533103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27766556 + 27766557.

It is an arithmetic number, because the mean of its divisors is an integer number (27766557).

Almost surely, 2^55533113 is an apocalyptic number.

It is an amenable number.

55533113 is a deficient number, since it is larger than the sum of its proper divisors (1).

55533113 is an equidigital number, since it uses as much as digits as its factorization.

55533113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3375, while the sum is 26.

The square root of 55533113 is about 7452.0542805323. The cubic root of 55533113 is about 381.5200266382.

Adding to 55533113 its reverse (31133555), we get a palindrome (86666668).

The spelling of 55533113 in words is "fifty-five million, five hundred thirty-three thousand, one hundred thirteen".