25220069 has 8 divisors (see below), whose sum is σ = 28911168. Its totient is φ = 21551040.

The previous prime is 25220057. The next prime is 25220077. The reversal of 25220069 is 96002252.

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

It is not a de Polignac number, because 25220069 - 2⁸ = 25219813 is a prime.

It is a super-2 number, since 2×25220069² = 1272103760729522, 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 (25220099) 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, 2987 + ... + 7704.

It is an arithmetic number, because the mean of its divisors is an integer number (3613896).

Almost surely, 2^25220069 is an apocalyptic number.

It is an amenable number.

25220069 is a deficient number, since it is larger than the sum of its proper divisors (3691099).

25220069 is a wasteful number, since it uses less digits than its factorization.

25220069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11035.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 25220069 is about 5021.9586816301. The cubic root of 25220069 is about 293.2572494076.

The spelling of 25220069 in words is "twenty-five million, two hundred twenty thousand, sixty-nine".