2500022250 has 192 divisors, whose sum is σ = 7469594496. Its totient is φ = 598272000.

The previous prime is 2500022221. The next prime is 2500022269. The reversal of 2500022250 is 522200052.

2500022250 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2500022250² = 12500222500990125000, which contains 22 as substring.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2053642 + ... + 2054858.

It is an arithmetic number, because the mean of its divisors is an integer number (38904138).

Almost surely, 2^2500022250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2500022250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3734797248).

2500022250 is an abundant number, since it is smaller than the sum of its proper divisors (4969572246).

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

2500022250 is a wasteful number, since it uses less digits than its factorization.

2500022250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 1321 counting only the distinct ones).

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

The square root of 2500022250 is about 50000.2224995049. Note that the first 3 decimals coincide. The cubic root of 2500022250 is about 1357.2128346716.

It can be divided in two parts, 250002 and 2250, that added together give a palindrome (252252).

The spelling of 2500022250 in words is "two billion, five hundred million, twenty-two thousand, two hundred fifty".