25273869 has 4 divisors (see below), whose sum is σ = 33698496. Its totient is φ = 16849244.

The previous prime is 25273867. The next prime is 25273879. The reversal of 25273869 is 96837252.

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 25273869 - 2¹ = 25273867 is a prime.

It is a super-2 number, since 2×25273869² = 1277536908458322, 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 25273869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25273861) 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, 4212309 + ... + 4212314.

It is an arithmetic number, because the mean of its divisors is an integer number (8424624).

Almost surely, 2^25273869 is an apocalyptic number.

It is an amenable number.

25273869 is a deficient number, since it is larger than the sum of its proper divisors (8424627).

25273869 is an equidigital number, since it uses as much as digits as its factorization.

25273869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8424626.

The product of its digits is 181440, while the sum is 42.

The square root of 25273869 is about 5027.3123038061. The cubic root of 25273869 is about 293.4656288865.

The spelling of 25273869 in words is "twenty-five million, two hundred seventy-three thousand, eight hundred sixty-nine".