254121554040 has 64 divisors (see below), whose sum is σ = 770930589600. Its totient is φ = 67004332032.

The previous prime is 254121554039. The next prime is 254121554047. The reversal of 254121554040 is 40455121452.

It is a happy number.

254121554040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 254121553992 and 254121554010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254121554047) 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 in 15 ways as a sum of consecutive naturals, for example, 11886397 + ... + 11907756.

Almost surely, 2^254121554040 is an apocalyptic number.

254121554040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254121554040 is an abundant number, since it is smaller than the sum of its proper divisors (516809035560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

254121554040 is a wasteful number, since it uses less digits than its factorization.

254121554040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23794256 (or 23794252 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 254121554040 its reverse (40455121452), we get a palindrome (294576675492).

The spelling of 254121554040 in words is "two hundred fifty-four billion, one hundred twenty-one million, five hundred fifty-four thousand, forty".