25241081 has 4 divisors (see below), whose sum is σ = 25257972. Its totient is φ = 25224192.

The previous prime is 25241059. The next prime is 25241087. The reversal of 25241081 is 18014252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5837056 + 19404025 = 2416^2 + 4405^2 .

It is a cyclic number.

It is not a de Polignac number, because 25241081 - 2¹⁰ = 25240057 is a prime.

It is a super-2 number, since 2×25241081² = 1274224340097122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25241087) 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, 5960 + ... + 9273.

It is an arithmetic number, because the mean of its divisors is an integer number (6314493).

Almost surely, 2^25241081 is an apocalyptic number.

It is an amenable number.

25241081 is a deficient number, since it is larger than the sum of its proper divisors (16891).

25241081 is a wasteful number, since it uses less digits than its factorization.

25241081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16890.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 25241081 is about 5024.0502585066. The cubic root of 25241081 is about 293.3386688366.

It can be divided in two parts, 25 and 241081, that multiplied together give a square (6027025 = 2455²).

The spelling of 25241081 in words is "twenty-five million, two hundred forty-one thousand, eighty-one".