55117413 has 12 divisors (see below), whose sum is σ = 85738380. Its totient is φ = 33918336.

The previous prime is 55117397. The next prime is 55117441. The reversal of 55117413 is 31471155.

It can be written as a sum of positive squares in 2 ways, for example, as 9108324 + 46009089 = 3018^2 + 6783^2 .

It is not a de Polignac number, because 55117413 - 2⁴ = 55117397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55112413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235428 + ... + 235661.

It is an arithmetic number, because the mean of its divisors is an integer number (7144865).

Almost surely, 2^55117413 is an apocalyptic number.

It is an amenable number.

55117413 is a deficient number, since it is larger than the sum of its proper divisors (30620967).

55117413 is a wasteful number, since it uses less digits than its factorization.

55117413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471108 (or 471105 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 55117413 is about 7424.1102497202. The cubic root of 55117413 is about 380.5656695279.

Adding to 55117413 its reverse (31471155), we get a palindrome (86588568).

The spelling of 55117413 in words is "fifty-five million, one hundred seventeen thousand, four hundred thirteen".