54808861 has 2 divisors, whose sum is σ = 54808862. Its totient is φ = 54808860.

The previous prime is 54808847. The next prime is 54808883. The reversal of 54808861 is 16880845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49491225 + 5317636 = 7035^2 + 2306^2 .

It is a cyclic number.

It is not a de Polignac number, because 54808861 - 2⁵ = 54808829 is a prime.

It is a super-2 number, since 2×54808861² = 6008022488234642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54808891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27404430 + 27404431.

It is an arithmetic number, because the mean of its divisors is an integer number (27404431).

Almost surely, 2^54808861 is an apocalyptic number.

It is an amenable number.

54808861 is a deficient number, since it is larger than the sum of its proper divisors (1).

54808861 is an equidigital number, since it uses as much as digits as its factorization.

54808861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 54808861 is about 7403.3006828036. The cubic root of 54808861 is about 379.8541938304.

It can be divided in two parts, 5480 and 8861, that added together give a palindrome (14341).

The spelling of 54808861 in words is "fifty-four million, eight hundred eight thousand, eight hundred sixty-one".