254489521 has 8 divisors (see below), whose sum is σ = 298980864. Its totient is φ = 213557520.

The previous prime is 254489513. The next prime is 254489533. The reversal of 254489521 is 125984452.

It is a happy number.

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

It is not a de Polignac number, because 254489521 - 2³ = 254489513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254489551) 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, 889681 + ... + 889966.

It is an arithmetic number, because the mean of its divisors is an integer number (37372608).

Almost surely, 2^254489521 is an apocalyptic number.

It is an amenable number.

254489521 is a deficient number, since it is larger than the sum of its proper divisors (44491343).

254489521 is a wasteful number, since it uses less digits than its factorization.

254489521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779671.

The product of its digits is 115200, while the sum is 40.

The square root of 254489521 is about 15952.7276977951. The cubic root of 254489521 is about 633.7091357525.

It can be divided in two parts, 25448 and 9521, that added together give a square (34969 = 187²).

The spelling of 254489521 in words is "two hundred fifty-four million, four hundred eighty-nine thousand, five hundred twenty-one".