2455221144452 has 24 divisors (see below), whose sum is σ = 4388297390400. Its totient is φ = 1201693275936.

The previous prime is 2455221144319. The next prime is 2455221144461. The reversal of 2455221144452 is 2544411225542.

It is a super-2 number, since 2×2455221144452² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33886952 + ... + 33959327.

It is an arithmetic number, because the mean of its divisors is an integer number (182845724600).

Almost surely, 2^{2455221144452} is an apocalyptic number.

It is an amenable number.

2455221144452 is a deficient number, since it is larger than the sum of its proper divisors (1933076245948).

2455221144452 is a wasteful number, since it uses less digits than its factorization.

2455221144452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67846475 (or 67846473 counting only the distinct ones).

The product of its digits is 512000, while the sum is 41.

Adding to 2455221144452 its reverse (2544411225542), we get a palindrome (4999632369994).

The spelling of 2455221144452 in words is "two trillion, four hundred fifty-five billion, two hundred twenty-one million, one hundred forty-four thousand, four hundred fifty-two".