254243025 has 27 divisors (see below), whose sum is σ = 455806299. Its totient is φ = 135468720.

The previous prime is 254242991. The next prime is 254243053. The reversal of 254243025 is 520342452.

It is a happy number.

The square root of 254243025 is 15945.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 91527489 + 162715536 = 9567^2 + 12756^2 .

It is not a de Polignac number, because 254243025 - 2¹³ = 254234833 is a prime.

It is a super-2 number, since 2×254243025² = 129279031522301250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 254243025.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 238644 + ... + 239706.

Almost surely, 2^254243025 is an apocalyptic number.

254243025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

254243025 is the 15945-th square number.

254243025 is the 7973-rd centered octagonal number.

It is an amenable number.

254243025 is a deficient number, since it is larger than the sum of its proper divisors (201563274).

254243025 is an equidigital number, since it uses as much as digits as its factorization.

254243025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The cubic root of 254243025 is about 633.5044682190.

Adding to 254243025 its reverse (520342452), we get a palindrome (774585477).

The spelling of 254243025 in words is "two hundred fifty-four million, two hundred forty-three thousand, twenty-five".