2502221444 has 6 divisors (see below), whose sum is σ = 4378887534. Its totient is φ = 1251110720.

The previous prime is 2502221443. The next prime is 2502221467. The reversal of 2502221444 is 4441222052.

It can be written as a sum of positive squares in only one way, i.e., 1521780100 + 980441344 = 39010^2 + 31312^2 .

It is a super-2 number, since 2×2502221444² = 12522224309626890272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2502221441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312777677 + ... + 312777684.

It is an arithmetic number, because the mean of its divisors is an integer number (729814589).

Almost surely, 2^2502221444 is an apocalyptic number.

It is an amenable number.

2502221444 is a deficient number, since it is larger than the sum of its proper divisors (1876666090).

2502221444 is a wasteful number, since it uses less digits than its factorization.

2502221444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625555365 (or 625555363 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 2502221444 is about 50022.2095073778. The cubic root of 2502221444 is about 1357.6106844034.

Adding to 2502221444 its reverse (4441222052), we get a palindrome (6943443496).

The spelling of 2502221444 in words is "two billion, five hundred two million, two hundred twenty-one thousand, four hundred forty-four".