2042554521 has 16 divisors (see below), whose sum is σ = 3124306944. Its totient is φ = 1162732944.

The previous prime is 2042554517. The next prime is 2042554541. The reversal of 2042554521 is 1254552402.

It is not a de Polignac number, because 2042554521 - 2² = 2042554517 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2042554541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179391 + ... + 190436.

It is an arithmetic number, because the mean of its divisors is an integer number (195269184).

Almost surely, 2^2042554521 is an apocalyptic number.

2042554521 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2042554521 is a deficient number, since it is larger than the sum of its proper divisors (1081752423).

2042554521 is a wasteful number, since it uses less digits than its factorization.

2042554521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370100.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2042554521 is about 45194.6293380087. The cubic root of 2042554521 is about 1268.7943009728.

The spelling of 2042554521 in words is "two billion, forty-two million, five hundred fifty-four thousand, five hundred twenty-one".