2475553221 has 6 divisors (see below), whose sum is σ = 3575799110. Its totient is φ = 1650368808.

The previous prime is 2475553219. The next prime is 2475553247. The reversal of 2475553221 is 1223555742.

It can be written as a sum of positive squares in only one way, i.e., 2370716100 + 104837121 = 48690^2 + 10239^2 .

It is not a de Polignac number, because 2475553221 - 2¹ = 2475553219 is a prime.

It is a super-2 number, since 2×2475553221² = 12256727500006949682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2475553021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137530726 + ... + 137530743.

Almost surely, 2^2475553221 is an apocalyptic number.

It is an amenable number.

2475553221 is a deficient number, since it is larger than the sum of its proper divisors (1100245889).

2475553221 is a wasteful number, since it uses less digits than its factorization.

2475553221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275061475 (or 275061472 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 2475553221 is about 49754.9316249153. The cubic root of 2475553221 is about 1352.7703915330.

The spelling of 2475553221 in words is "two billion, four hundred seventy-five million, five hundred fifty-three thousand, two hundred twenty-one".