2001777054 has 16 divisors (see below), whose sum is σ = 4010312592. Its totient is φ = 666132608.

The previous prime is 2001777031. The next prime is 2001777059. The reversal of 2001777054 is 4507771002.

It is a happy number.

It is a super-2 number, since 2×2001777054² = 8014222747841837832, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001777059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277749 + ... + 284864.

It is an arithmetic number, because the mean of its divisors is an integer number (250644537).

Almost surely, 2^2001777054 is an apocalyptic number.

2001777054 is an abundant number, since it is smaller than the sum of its proper divisors (2008535538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001777054 is a wasteful number, since it uses less digits than its factorization.

2001777054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563211.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 2001777054 is about 44741.2232063452. The cubic root of 2001777054 is about 1260.2940973860.

The spelling of 2001777054 in words is "two billion, one million, seven hundred seventy-seven thousand, fifty-four".