55938811 has 2 divisors, whose sum is σ = 55938812. Its totient is φ = 55938810.

The previous prime is 55938809. The next prime is 55938847. The reversal of 55938811 is 11883955.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55938811 - 2¹ = 55938809 is a prime.

It is a super-3 number, since 3×55938811³ (a number of 24 digits) contains 333 as substring.

Together with 55938809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55938871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27969405 + 27969406.

It is an arithmetic number, because the mean of its divisors is an integer number (27969406).

Almost surely, 2^55938811 is an apocalyptic number.

55938811 is a deficient number, since it is larger than the sum of its proper divisors (1).

55938811 is an equidigital number, since it uses as much as digits as its factorization.

55938811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 40.

The square root of 55938811 is about 7479.2252941063. The cubic root of 55938811 is about 382.4468401210.

The spelling of 55938811 in words is "fifty-five million, nine hundred thirty-eight thousand, eight hundred eleven".