2534617921 has 8 divisors (see below), whose sum is σ = 2767298688. Its totient is φ = 2302314000.

The previous prime is 2534617861. The next prime is 2534617931. The reversal of 2534617921 is 1297164352.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2534617921 - 2¹⁵ = 2534585153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2534617931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80050 + ... + 107131.

It is an arithmetic number, because the mean of its divisors is an integer number (345912336).

Almost surely, 2^2534617921 is an apocalyptic number.

It is an amenable number.

2534617921 is a deficient number, since it is larger than the sum of its proper divisors (232680767).

2534617921 is a wasteful number, since it uses less digits than its factorization.

2534617921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188423.

The product of its digits is 90720, while the sum is 40.

The square root of 2534617921 is about 50344.9890356528. The cubic root of 2534617921 is about 1363.4446131525. Note that the first 3 decimals are identical.

The spelling of 2534617921 in words is "two billion, five hundred thirty-four million, six hundred seventeen thousand, nine hundred twenty-one".