3540555545 has 4 divisors (see below), whose sum is σ = 4248666660. Its totient is φ = 2832444432.

The previous prime is 3540555523. The next prime is 3540555569. The reversal of 3540555545 is 5455550453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5455550453 = 157 ⋅34748729.

It can be written as a sum of positive squares in 2 ways, for example, as 1941195481 + 1599360064 = 44059^2 + 39992^2 .

It is a cyclic number.

It is not a de Polignac number, because 3540555545 - 2¹⁴ = 3540539161 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354055550 + ... + 354055559.

It is an arithmetic number, because the mean of its divisors is an integer number (1062166665).

Almost surely, 2^3540555545 is an apocalyptic number.

It is an amenable number.

3540555545 is a deficient number, since it is larger than the sum of its proper divisors (708111115).

3540555545 is an equidigital number, since it uses as much as digits as its factorization.

3540555545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708111114.

The product of its (nonzero) digits is 750000, while the sum is 41.

The square root of 3540555545 is about 59502.5675496444. The cubic root of 3540555545 is about 1524.1362906348.

The spelling of 3540555545 in words is "three billion, five hundred forty million, five hundred fifty-five thousand, five hundred forty-five".