25221096 has 24 divisors (see below), whose sum is σ = 68307330. Its totient is φ = 8407008.

The previous prime is 25221071. The next prime is 25221103. The reversal of 25221096 is 69012252.

It can be written as a sum of positive squares in only one way, i.e., 16892100 + 8328996 = 4110^2 + 2886^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×25221096² = 1272207366882432, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175075 + ... + 175218.

Almost surely, 2^25221096 is an apocalyptic number.

It is an amenable number.

25221096 is an abundant number, since it is smaller than the sum of its proper divisors (43086234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25221096 is a wasteful number, since it uses less digits than its factorization.

25221096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350305 (or 350298 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 25221096 is about 5022.0609315300. The cubic root of 25221096 is about 293.2612299823.

The spelling of 25221096 in words is "twenty-five million, two hundred twenty-one thousand, ninety-six".