254213552021 has 16 divisors (see below), whose sum is σ = 298699446528. Its totient is φ = 213295368000.

The previous prime is 254213552009. The next prime is 254213552039. The reversal of 254213552021 is 120255312452.

It is a de Polignac number, because none of the positive numbers 2^k-254213552021 is a prime.

It is a super-3 number, since 3×254213552021³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254213552041) 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, 898295 + ... + 1146891.

It is an arithmetic number, because the mean of its divisors is an integer number (18668715408).

Almost surely, 2^254213552021 is an apocalyptic number.

It is an amenable number.

254213552021 is a deficient number, since it is larger than the sum of its proper divisors (44485894507).

254213552021 is a wasteful number, since it uses less digits than its factorization.

254213552021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255772.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 254213552021 its reverse (120255312452), we get a palindrome (374468864473).

The spelling of 254213552021 in words is "two hundred fifty-four billion, two hundred thirteen million, five hundred fifty-two thousand, twenty-one".