254142520425 has 36 divisors (see below), whose sum is σ = 481973822460. Its totient is φ = 127569576960.

The previous prime is 254142520417. The next prime is 254142520427. The reversal of 254142520425 is 524025241452.

254142520425 is a `hidden beast` number, since 2 + 5 + 4 + 1 + 425 + 204 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 6308807184 + 247833713241 = 79428^2 + 497829^2 .

It is not a de Polignac number, because 254142520425 - 2³ = 254142520417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254142520425.

It is not an unprimeable number, because it can be changed into a prime (254142520427) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33217420 + ... + 33225069.

It is an arithmetic number, because the mean of its divisors is an integer number (13388161735).

Almost surely, 2^254142520425 is an apocalyptic number.

254142520425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

254142520425 is a deficient number, since it is larger than the sum of its proper divisors (227831302035).

254142520425 is a wasteful number, since it uses less digits than its factorization.

254142520425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66442522 (or 66442514 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

Adding to 254142520425 its reverse (524025241452), we get a palindrome (778167761877).

The spelling of 254142520425 in words is "two hundred fifty-four billion, one hundred forty-two million, five hundred twenty thousand, four hundred twenty-five".