55534813 has 2 divisors, whose sum is σ = 55534814. Its totient is φ = 55534812.

The previous prime is 55534789. The next prime is 55534837. The reversal of 55534813 is 31843555.

It is a balanced prime because it is at equal distance from previous prime (55534789) and next prime (55534837).

It can be written as a sum of positive squares in only one way, i.e., 44063044 + 11471769 = 6638^2 + 3387^2 .

It is a cyclic number.

It is not a de Polignac number, because 55534813 - 2²⁵ = 21980381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55034813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27767406 + 27767407.

It is an arithmetic number, because the mean of its divisors is an integer number (27767407).

Almost surely, 2^55534813 is an apocalyptic number.

It is an amenable number.

55534813 is a deficient number, since it is larger than the sum of its proper divisors (1).

55534813 is an equidigital number, since it uses as much as digits as its factorization.

55534813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 34.

The square root of 55534813 is about 7452.1683421673. The cubic root of 55534813 is about 381.5239196755.

The spelling of 55534813 in words is "fifty-five million, five hundred thirty-four thousand, eight hundred thirteen".