55435417157 has 2 divisors, whose sum is σ = 55435417158. Its totient is φ = 55435417156.

The previous prime is 55435417117. The next prime is 55435417211. The reversal of 55435417157 is 75171453455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55319510401 + 115906756 = 235201^2 + 10766^2 .

It is a cyclic number.

It is not a de Polignac number, because 55435417157 - 2²⁶ = 55368308293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55435417117) 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, 27717708578 + 27717708579.

It is an arithmetic number, because the mean of its divisors is an integer number (27717708579).

Almost surely, 2^55435417157 is an apocalyptic number.

It is an amenable number.

55435417157 is a deficient number, since it is larger than the sum of its proper divisors (1).

55435417157 is an equidigital number, since it uses as much as digits as its factorization.

55435417157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1470000, while the sum is 47.

The spelling of 55435417157 in words is "fifty-five billion, four hundred thirty-five million, four hundred seventeen thousand, one hundred fifty-seven".