55346387 has 2 divisors, whose sum is σ = 55346388. Its totient is φ = 55346386.

The previous prime is 55346381. The next prime is 55346399. The reversal of 55346387 is 78364355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55346387 - 2⁴ = 55346371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55346381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27673193 + 27673194.

It is an arithmetic number, because the mean of its divisors is an integer number (27673194).

Almost surely, 2^55346387 is an apocalyptic number.

55346387 is a deficient number, since it is larger than the sum of its proper divisors (1).

55346387 is an equidigital number, since it uses as much as digits as its factorization.

55346387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 41.

The square root of 55346387 is about 7439.5152395838. The cubic root of 55346387 is about 381.0919354795.

The spelling of 55346387 in words is "fifty-five million, three hundred forty-six thousand, three hundred eighty-seven".