54925506409 has 2 divisors, whose sum is σ = 54925506410. Its totient is φ = 54925506408.

The previous prime is 54925506403. The next prime is 54925506557. The reversal of 54925506409 is 90460552945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54924609600 + 896809 = 234360^2 + 947^2 .

It is a cyclic number.

It is not a de Polignac number, because 54925506409 - 2³ = 54925506401 is a prime.

It is a super-2 number, since 2×54925506409² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54925506401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27462753204 + 27462753205.

It is an arithmetic number, because the mean of its divisors is an integer number (27462753205).

Almost surely, 2^54925506409 is an apocalyptic number.

It is an amenable number.

54925506409 is a deficient number, since it is larger than the sum of its proper divisors (1).

54925506409 is an equidigital number, since it uses as much as digits as its factorization.

54925506409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 54925506409 in words is "fifty-four billion, nine hundred twenty-five million, five hundred six thousand, four hundred nine".