2550261921 has 8 divisors (see below), whose sum is σ = 3400957440. Its totient is φ = 1699870512.

The previous prime is 2550261893. The next prime is 2550261941. The reversal of 2550261921 is 1291620552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2550261921 - 2⁷ = 2550261793 is a prime.

It is a super-2 number, since 2×2550261921² = 13007671731405220482, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2550261941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55681 + ... + 90558.

It is an arithmetic number, because the mean of its divisors is an integer number (425119680).

Almost surely, 2^2550261921 is an apocalyptic number.

It is an amenable number.

2550261921 is a deficient number, since it is larger than the sum of its proper divisors (850695519).

2550261921 is a wasteful number, since it uses less digits than its factorization.

2550261921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152055.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 2550261921 is about 50500.1180295650. The cubic root of 2550261921 is about 1366.2439823594.

The spelling of 2550261921 in words is "two billion, five hundred fifty million, two hundred sixty-one thousand, nine hundred twenty-one".