55017539 has 2 divisors, whose sum is σ = 55017540. Its totient is φ = 55017538.

The previous prime is 55017533. The next prime is 55017577. The reversal of 55017539 is 93571055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55017539 - 2⁸ = 55017283 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55017499 and 55017508.

It is not a weakly prime, because it can be changed into another prime (55017533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27508769 + 27508770.

It is an arithmetic number, because the mean of its divisors is an integer number (27508770).

Almost surely, 2^55017539 is an apocalyptic number.

55017539 is a deficient number, since it is larger than the sum of its proper divisors (1).

55017539 is an equidigital number, since it uses as much as digits as its factorization.

55017539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 55017539 is about 7417.3808719790. The cubic root of 55017539 is about 380.3356660122.

The spelling of 55017539 in words is "fifty-five million, seventeen thousand, five hundred thirty-nine".