25218053 has 8 divisors (see below), whose sum is σ = 29599872. Its totient is φ = 21031056.

The previous prime is 25218041. The next prime is 25218077. The reversal of 25218053 is 35081252.

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

It is a cyclic number.

It is not a de Polignac number, because 25218053 - 2⁶ = 25217989 is a prime.

It is a super-2 number, since 2×25218053² = 1271900394221618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25218013) 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, 48425 + ... + 48942.

It is an arithmetic number, because the mean of its divisors is an integer number (3699984).

Almost surely, 2^25218053 is an apocalyptic number.

It is an amenable number.

25218053 is a deficient number, since it is larger than the sum of its proper divisors (4381819).

25218053 is an equidigital number, since it uses as much as digits as its factorization.

25218053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97411.

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

The square root of 25218053 is about 5021.7579591215. The cubic root of 25218053 is about 293.2494352290.

The spelling of 25218053 in words is "twenty-five million, two hundred eighteen thousand, fifty-three".