25229261 has 8 divisors (see below), whose sum is σ = 26130720. Its totient is φ = 24342192.

The previous prime is 25229251. The next prime is 25229279. The reversal of 25229261 is 16292252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25229261 is a prime.

It is a super-2 number, since 2×25229261² = 1273031221212242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25229201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35 + ... + 7103.

It is an arithmetic number, because the mean of its divisors is an integer number (3266340).

Almost surely, 2^25229261 is an apocalyptic number.

It is an amenable number.

25229261 is a deficient number, since it is larger than the sum of its proper divisors (901459).

25229261 is an equidigital number, since it uses as much as digits as its factorization.

25229261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7195.

The product of its digits is 4320, while the sum is 29.

The square root of 25229261 is about 5022.8737790233. The cubic root of 25229261 is about 293.2928730639.

The spelling of 25229261 in words is "twenty-five million, two hundred twenty-nine thousand, two hundred sixty-one".