55435930609 has 2 divisors, whose sum is σ = 55435930610. Its totient is φ = 55435930608.

The previous prime is 55435930603. The next prime is 55435930651. The reversal of 55435930609 is 90603953455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52565649984 + 2870280625 = 229272^2 + 53575^2 .

It is a cyclic number.

It is not a de Polignac number, because 55435930609 - 2³ = 55435930601 is a prime.

It is a super-2 number, since 2×55435930609² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55435930601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27717965304 + 27717965305.

It is an arithmetic number, because the mean of its divisors is an integer number (27717965305).

Almost surely, 2^55435930609 is an apocalyptic number.

It is an amenable number.

55435930609 is a deficient number, since it is larger than the sum of its proper divisors (1).

55435930609 is an equidigital number, since it uses as much as digits as its factorization.

55435930609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187000, while the sum is 49.

The spelling of 55435930609 in words is "fifty-five billion, four hundred thirty-five million, nine hundred thirty thousand, six hundred nine".