55971347 has 2 divisors, whose sum is σ = 55971348. Its totient is φ = 55971346.

The previous prime is 55971341. The next prime is 55971367. The reversal of 55971347 is 74317955.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55971347 - 2¹⁰ = 55970323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55971341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27985673 + 27985674.

It is an arithmetic number, because the mean of its divisors is an integer number (27985674).

Almost surely, 2^55971347 is an apocalyptic number.

55971347 is a deficient number, since it is larger than the sum of its proper divisors (1).

55971347 is an equidigital number, since it uses as much as digits as its factorization.

55971347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 41.

The square root of 55971347 is about 7481.4000695057. The cubic root of 55971347 is about 382.5209739734.

The spelling of 55971347 in words is "fifty-five million, nine hundred seventy-one thousand, three hundred forty-seven".