2553222442 has 4 divisors (see below), whose sum is σ = 3829833666. Its totient is φ = 1276611220.

The previous prime is 2553222323. The next prime is 2553222443. The reversal of 2553222442 is 2442223552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2017716561 + 535505881 = 44919^2 + 23141^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2553222443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638305609 + ... + 638305612.

Almost surely, 2^2553222442 is an apocalyptic number.

2553222442 is a deficient number, since it is larger than the sum of its proper divisors (1276611224).

2553222442 is a wasteful number, since it uses less digits than its factorization.

2553222442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276611223.

The product of its digits is 38400, while the sum is 31.

The square root of 2553222442 is about 50529.4215482426. The cubic root of 2553222442 is about 1366.7724548556.

Adding to 2553222442 its reverse (2442223552), we get a palindrome (4995445994).

It can be divided in two parts, 25532 and 22442, that added together give a palindrome (47974).

The spelling of 2553222442 in words is "two billion, five hundred fifty-three million, two hundred twenty-two thousand, four hundred forty-two".