254121455420425 has 6 divisors (see below), whose sum is σ = 315110604721358. Its totient is φ = 203297164336320.

The previous prime is 254121455420389. The next prime is 254121455420431. The reversal of 254121455420425 is 524024554121452.

It can be written as a sum of positive squares in 3 ways, for example, as 79110066739456 + 175011388680969 = 8894384^2 + 13229187^2 .

It is not a de Polignac number, because 254121455420425 - 2⁴¹ = 251922432164873 is a prime.

It is a super-2 number, since 2×254121455420425² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5082429108384 + ... + 5082429108433.

Almost surely, 2^{254121455420425} is an apocalyptic number.

254121455420425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

254121455420425 is a deficient number, since it is larger than the sum of its proper divisors (60989149300933).

254121455420425 is a wasteful number, since it uses less digits than its factorization.

254121455420425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10164858216827 (or 10164858216822 counting only the distinct ones).

The product of its (nonzero) digits is 2560000, while the sum is 46.

The spelling of 254121455420425 in words is "two hundred fifty-four trillion, one hundred twenty-one billion, four hundred fifty-five million, four hundred twenty thousand, four hundred twenty-five".