254404201025 has 24 divisors (see below), whose sum is σ = 339812235000. Its totient is φ = 187820835840.

The previous prime is 254404201019. The next prime is 254404201063. The reversal of 254404201025 is 520102404452.

It can be written as a sum of positive squares in 12 ways, for example, as 119408949136 + 134995251889 = 345556^2 + 367417^2 .

It is not a de Polignac number, because 254404201025 - 2⁶ = 254404200961 is a prime.

It is a super-2 number, since 2×254404201025² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1234601 + ... + 1425849.

It is an arithmetic number, because the mean of its divisors is an integer number (14158843125).

Almost surely, 2^254404201025 is an apocalyptic number.

254404201025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

254404201025 is a deficient number, since it is larger than the sum of its proper divisors (85408033975).

254404201025 is a wasteful number, since it uses less digits than its factorization.

254404201025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195365 (or 195360 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 254404201025 its reverse (520102404452), we get a palindrome (774506605477).

The spelling of 254404201025 in words is "two hundred fifty-four billion, four hundred four million, two hundred one thousand, twenty-five".