55220107 has 2 divisors, whose sum is σ = 55220108. Its totient is φ = 55220106.

The previous prime is 55220101. The next prime is 55220141. The reversal of 55220107 is 70102255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55220107 - 2¹⁵ = 55187339 is a prime.

It is not a weakly prime, because it can be changed into another prime (55220101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27610053 + 27610054.

It is an arithmetic number, because the mean of its divisors is an integer number (27610054).

Almost surely, 2^55220107 is an apocalyptic number.

55220107 is a deficient number, since it is larger than the sum of its proper divisors (1).

55220107 is an equidigital number, since it uses as much as digits as its factorization.

55220107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 55220107 is about 7431.0232808140. The cubic root of 55220107 is about 380.8018777823.

The spelling of 55220107 in words is "fifty-five million, two hundred twenty thousand, one hundred seven".