254135025 has 18 divisors (see below), whose sum is σ = 455184470. Its totient is φ = 135538560.

The previous prime is 254135017. The next prime is 254135069. The reversal of 254135025 is 520531452.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 178929 + 253956096 = 423^2 + 15936^2 .

It is not a de Polignac number, because 254135025 - 2³ = 254135017 is a prime.

It is a super-2 number, since 2×254135025² = 129169221863501250, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 254135025.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 564520 + ... + 564969.

Almost surely, 2^254135025 is an apocalyptic number.

254135025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

254135025 is a deficient number, since it is larger than the sum of its proper divisors (201049445).

254135025 is a wasteful number, since it uses less digits than its factorization.

254135025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129505 (or 1129497 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 254135025 is about 15941.6129986899. The cubic root of 254135025 is about 633.4147533058.

Adding to 254135025 its reverse (520531452), we get a palindrome (774666477).

The spelling of 254135025 in words is "two hundred fifty-four million, one hundred thirty-five thousand, twenty-five".