4055550961 has 16 divisors (see below), whose sum is σ = 5068044288. Its totient is φ = 3152811600.

The previous prime is 4055550959. The next prime is 4055550973. The reversal of 4055550961 is 1690555504.

It is a cyclic number.

It is not a de Polignac number, because 4055550961 - 2¹ = 4055550959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4055520961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27915 + ... + 94288.

It is an arithmetic number, because the mean of its divisors is an integer number (316752768).

Almost surely, 2^4055550961 is an apocalyptic number.

It is an amenable number.

4055550961 is a deficient number, since it is larger than the sum of its proper divisors (1012493327).

4055550961 is a wasteful number, since it uses less digits than its factorization.

4055550961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122652.

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 4055550961 is about 63683.2078416281. The cubic root of 4055550961 is about 1594.7157652992.

The spelling of 4055550961 in words is "four billion, fifty-five million, five hundred fifty thousand, nine hundred sixty-one".