55548739 has 2 divisors, whose sum is σ = 55548740. Its totient is φ = 55548738.

The previous prime is 55548737. The next prime is 55548781. The reversal of 55548739 is 93784555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55548739 - 2¹ = 55548737 is a prime.

Together with 55548737, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55548737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27774369 + 27774370.

It is an arithmetic number, because the mean of its divisors is an integer number (27774370).

Almost surely, 2^55548739 is an apocalyptic number.

55548739 is a deficient number, since it is larger than the sum of its proper divisors (1).

55548739 is an equidigital number, since it uses as much as digits as its factorization.

55548739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756000, while the sum is 46.

The square root of 55548739 is about 7453.1026425241. The cubic root of 55548739 is about 381.5558075297. Note that the first 3 decimals are identical.

It can be divided in two parts, 555 and 48739, that added together give a palindrome (49294).

The spelling of 55548739 in words is "fifty-five million, five hundred forty-eight thousand, seven hundred thirty-nine".