2004551501 has 2 divisors, whose sum is σ = 2004551502. Its totient is φ = 2004551500.

The previous prime is 2004551467. The next prime is 2004551503. The reversal of 2004551501 is 1051554002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1705607401 + 298944100 = 41299^2 + 17290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2004551501 is a prime.

It is a super-2 number, since 2×2004551501² = 8036453440322706002, which contains 22 as substring.

Together with 2004551503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2004551503) 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 as a sum of consecutive naturals, namely, 1002275750 + 1002275751.

It is an arithmetic number, because the mean of its divisors is an integer number (1002275751).

Almost surely, 2^2004551501 is an apocalyptic number.

It is an amenable number.

2004551501 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004551501 is an equidigital number, since it uses as much as digits as its factorization.

2004551501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2004551501 is about 44772.2179593551. The cubic root of 2004551501 is about 1260.8760811097.

The spelling of 2004551501 in words is "two billion, four million, five hundred fifty-one thousand, five hundred one".