254521922 has 18 divisors (see below), whose sum is σ = 396420843. Its totient is φ = 122556784.

The previous prime is 254521921. The next prime is 254521937. The reversal of 254521922 is 229125452.

254521922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 65431921 + 189090001 = 8089^2 + 13751^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=11281.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254521921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 654104 + ... + 654492.

Almost surely, 2^254521922 is an apocalyptic number.

254521922 is a deficient number, since it is larger than the sum of its proper divisors (141898921).

254521922 is an frugal number, since it uses more digits than its factorization.

254521922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 420 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 254521922 is about 15953.7431971309. The cubic root of 254521922 is about 633.7360287241.

Multiplying 254521922 by its sum of digits (32), we get a square (8144701504 = 90248²).

The spelling of 254521922 in words is "two hundred fifty-four million, five hundred twenty-one thousand, nine hundred twenty-two".