54435235669 has 2 divisors, whose sum is σ = 54435235670. Its totient is φ = 54435235668.

The previous prime is 54435235661. The next prime is 54435235691. The reversal of 54435235669 is 96653253445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49155324100 + 5279911569 = 221710^2 + 72663^2 .

It is a cyclic number.

It is not a de Polignac number, because 54435235669 - 2³ = 54435235661 is a prime.

It is a super-2 number, since 2×54435235669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54435235661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27217617834 + 27217617835.

It is an arithmetic number, because the mean of its divisors is an integer number (27217617835).

Almost surely, 2^54435235669 is an apocalyptic number.

It is an amenable number.

54435235669 is a deficient number, since it is larger than the sum of its proper divisors (1).

54435235669 is an equidigital number, since it uses as much as digits as its factorization.

54435235669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664000, while the sum is 52.

The spelling of 54435235669 in words is "fifty-four billion, four hundred thirty-five million, two hundred thirty-five thousand, six hundred sixty-nine".