4055028513561 has 32 divisors (see below), whose sum is σ = 6361013358720. Its totient is φ = 2544257889792.

The previous prime is 4055028513551. The next prime is 4055028513589. The reversal of 4055028513561 is 1653158205504.

4055028513561 is a `hidden beast` number, since 4 + 0 + 5 + 5 + 0 + 2 + 85 + 1 + 3 + 561 = 666.

It is not a de Polignac number, because 4055028513561 - 2³⁷ = 3917589560089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4055028513511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18763426 + ... + 18978308.

It is an arithmetic number, because the mean of its divisors is an integer number (198781667460).

Almost surely, 2^{4055028513561} is an apocalyptic number.

It is an amenable number.

4055028513561 is a deficient number, since it is larger than the sum of its proper divisors (2305984845159).

4055028513561 is a wasteful number, since it uses less digits than its factorization.

4055028513561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256022 (or 256016 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The spelling of 4055028513561 in words is "four trillion, fifty-five billion, twenty-eight million, five hundred thirteen thousand, five hundred sixty-one".