254505221542 has 32 divisors (see below), whose sum is σ = 448550724384. Its totient is φ = 106773024000.

The previous prime is 254505221491. The next prime is 254505221549. The reversal of 254505221542 is 245122505452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254505221549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2669292 + ... + 2762992.

It is an arithmetic number, because the mean of its divisors is an integer number (14017210137).

Almost surely, 2^254505221542 is an apocalyptic number.

254505221542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

254505221542 is a deficient number, since it is larger than the sum of its proper divisors (194045502842).

254505221542 is a wasteful number, since it uses less digits than its factorization.

254505221542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103224.

The product of its (nonzero) digits is 160000, while the sum is 37.

Adding to 254505221542 its reverse (245122505452), we get a palindrome (499627726994).

The spelling of 254505221542 in words is "two hundred fifty-four billion, five hundred five million, two hundred twenty-one thousand, five hundred forty-two".