54507086261 has 2 divisors, whose sum is σ = 54507086262. Its totient is φ = 54507086260.

The previous prime is 54507086237. The next prime is 54507086269. The reversal of 54507086261 is 16268070545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34376868100 + 20130218161 = 185410^2 + 141881^2 .

It is a cyclic number.

It is not a de Polignac number, because 54507086261 - 2²² = 54502891957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54507086269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27253543130 + 27253543131.

It is an arithmetic number, because the mean of its divisors is an integer number (27253543131).

Almost surely, 2^54507086261 is an apocalyptic number.

It is an amenable number.

54507086261 is a deficient number, since it is larger than the sum of its proper divisors (1).

54507086261 is an equidigital number, since it uses as much as digits as its factorization.

54507086261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 54507086261 in words is "fifty-four billion, five hundred seven million, eighty-six thousand, two hundred sixty-one".