25053281 has 4 divisors (see below), whose sum is σ = 27330864. Its totient is φ = 22775700.

The previous prime is 25053247. The next prime is 25053283. The reversal of 25053281 is 18235052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25053281 - 2¹⁰ = 25052257 is a prime.

It is a super-2 number, since 2×25053281² = 1255333777729922, 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 25053281.

It is not an unprimeable number, because it can be changed into a prime (25053283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1138775 + ... + 1138796.

It is an arithmetic number, because the mean of its divisors is an integer number (6832716).

Almost surely, 2^25053281 is an apocalyptic number.

It is an amenable number.

25053281 is a deficient number, since it is larger than the sum of its proper divisors (2277583).

25053281 is a wasteful number, since it uses less digits than its factorization.

25053281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277582.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 25053281 is about 5005.3252641562. The cubic root of 25053281 is about 292.6093525432.

The spelling of 25053281 in words is "twenty-five million, fifty-three thousand, two hundred eighty-one".