254138890125 has 16 divisors (see below), whose sum is σ = 422887113792. Its totient is φ = 135540741200.

The previous prime is 254138890123. The next prime is 254138890139. The reversal of 254138890125 is 521098831452.

It is not a de Polignac number, because 254138890125 - 2¹ = 254138890123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254138890123) 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, 338851479 + ... + 338852228.

It is an arithmetic number, because the mean of its divisors is an integer number (26430444612).

Almost surely, 2^254138890125 is an apocalyptic number.

254138890125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

254138890125 is a deficient number, since it is larger than the sum of its proper divisors (168748223667).

254138890125 is an equidigital number, since it uses as much as digits as its factorization.

254138890125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677703725 (or 677703715 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 254138890125 in words is "two hundred fifty-four billion, one hundred thirty-eight million, eight hundred ninety thousand, one hundred twenty-five".