2042655801 has 4 divisors (see below), whose sum is σ = 2723541072. Its totient is φ = 1361770532.

The previous prime is 2042655799. The next prime is 2042655833. The reversal of 2042655801 is 1085562402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2042655801 - 2¹ = 2042655799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2042655701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340442631 + ... + 340442636.

It is an arithmetic number, because the mean of its divisors is an integer number (680885268).

Almost surely, 2^2042655801 is an apocalyptic number.

It is an amenable number.

2042655801 is a deficient number, since it is larger than the sum of its proper divisors (680885271).

2042655801 is an equidigital number, since it uses as much as digits as its factorization.

2042655801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680885270.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 2042655801 is about 45195.7498112378. The cubic root of 2042655801 is about 1268.8152716677.

The spelling of 2042655801 in words is "two billion, forty-two million, six hundred fifty-five thousand, eight hundred one".