55294207 has 2 divisors, whose sum is σ = 55294208. Its totient is φ = 55294206.

The previous prime is 55294189. The next prime is 55294219. The reversal of 55294207 is 70249255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55294207 - 2⁷ = 55294079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55294247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27647103 + 27647104.

It is an arithmetic number, because the mean of its divisors is an integer number (27647104).

Almost surely, 2^55294207 is an apocalyptic number.

55294207 is a deficient number, since it is larger than the sum of its proper divisors (1).

55294207 is an equidigital number, since it uses as much as digits as its factorization.

55294207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 55294207 is about 7436.0074636864. The cubic root of 55294207 is about 380.9721346471.

The spelling of 55294207 in words is "fifty-five million, two hundred ninety-four thousand, two hundred seven".