55926109 has 2 divisors, whose sum is σ = 55926110. Its totient is φ = 55926108.

The previous prime is 55926071. The next prime is 55926113. The reversal of 55926109 is 90162955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55920484 + 5625 = 7478^2 + 75^2 .

It is a cyclic number.

It is not a de Polignac number, because 55926109 - 2¹¹ = 55924061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55926119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27963054 + 27963055.

It is an arithmetic number, because the mean of its divisors is an integer number (27963055).

Almost surely, 2^55926109 is an apocalyptic number.

It is an amenable number.

55926109 is a deficient number, since it is larger than the sum of its proper divisors (1).

55926109 is an equidigital number, since it uses as much as digits as its factorization.

55926109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 55926109 is about 7478.3760937786. The cubic root of 55926109 is about 382.4178905872.

The spelling of 55926109 in words is "fifty-five million, nine hundred twenty-six thousand, one hundred nine".