2054019997 has 4 divisors (see below), whose sum is σ = 2054590560. Its totient is φ = 2053449436.

The previous prime is 2054019983. The next prime is 2054020027. The reversal of 2054019997 is 7999104502.

It is a happy number.

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 2054019997 - 2¹⁹ = 2053495709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054019937) 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, 279847 + ... + 287092.

It is an arithmetic number, because the mean of its divisors is an integer number (513647640).

Almost surely, 2^2054019997 is an apocalyptic number.

It is an amenable number.

2054019997 is a deficient number, since it is larger than the sum of its proper divisors (570563).

2054019997 is an equidigital number, since it uses as much as digits as its factorization.

2054019997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570562.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 2054019997 is about 45321.2973887553. The cubic root of 2054019997 is about 1271.1639146932.

The spelling of 2054019997 in words is "two billion, fifty-four million, nineteen thousand, nine hundred ninety-seven".