55093147 has 2 divisors, whose sum is σ = 55093148. Its totient is φ = 55093146.

The previous prime is 55093139. The next prime is 55093151. The reversal of 55093147 is 74139055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55093147 - 2³ = 55093139 is a prime.

It is not a weakly prime, because it can be changed into another prime (55093847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27546573 + 27546574.

It is an arithmetic number, because the mean of its divisors is an integer number (27546574).

Almost surely, 2^55093147 is an apocalyptic number.

55093147 is a deficient number, since it is larger than the sum of its proper divisors (1).

55093147 is an equidigital number, since it uses as much as digits as its factorization.

55093147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 55093147 is about 7422.4757998932. The cubic root of 55093147 is about 380.5098120315.

The spelling of 55093147 in words is "fifty-five million, ninety-three thousand, one hundred forty-seven".