55836457 has 2 divisors, whose sum is σ = 55836458. Its totient is φ = 55836456.

The previous prime is 55836437. The next prime is 55836461. The reversal of 55836457 is 75463855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55190041 + 646416 = 7429^2 + 804^2 .

It is a cyclic number.

It is not a de Polignac number, because 55836457 - 2²³ = 47447849 is a prime.

It is not a weakly prime, because it can be changed into another prime (55836427) 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, 27918228 + 27918229.

It is an arithmetic number, because the mean of its divisors is an integer number (27918229).

Almost surely, 2^55836457 is an apocalyptic number.

It is an amenable number.

55836457 is a deficient number, since it is larger than the sum of its proper divisors (1).

55836457 is an equidigital number, since it uses as much as digits as its factorization.

55836457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 43.

The square root of 55836457 is about 7472.3796075949. The cubic root of 55836457 is about 382.2134370946.

The spelling of 55836457 in words is "fifty-five million, eight hundred thirty-six thousand, four hundred fifty-seven".