25250022 has 64 divisors (see below), whose sum is σ = 65149440. Its totient is φ = 7099488.

The previous prime is 25250003. The next prime is 25250033. The reversal of 25250022 is 22005252.

It is a super-2 number, since 2×25250022² = 1275127222000968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 25249977 and 25250004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24828 + ... + 25824.

It is an arithmetic number, because the mean of its divisors is an integer number (1017960).

Almost surely, 2^25250022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25250022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32574720).

25250022 is an abundant number, since it is smaller than the sum of its proper divisors (39899418).

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

25250022 is a wasteful number, since it uses less digits than its factorization.

25250022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 25250022 is about 5024.9399996418. The cubic root of 25250022 is about 293.3733006262.

Adding to 25250022 its reverse (22005252), we get a palindrome (47255274).

It can be divided in two parts, 25 and 250022, that added together give a cube (250047 = 63³).

The spelling of 25250022 in words is "twenty-five million, two hundred fifty thousand, twenty-two".