7421053225 has 12 divisors (see below), whose sum is σ = 9215800156. Its totient is φ = 5928007680.

The previous prime is 7421053169. The next prime is 7421053253. The reversal of 7421053225 is 5223501247.

It can be written as a sum of positive squares in 6 ways, for example, as 1882865664 + 5538187561 = 43392^2 + 74419^2 .

It is not a de Polignac number, because 7421053225 - 2¹³ = 7421045033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203712 + ... + 237361.

Almost surely, 2^7421053225 is an apocalyptic number.

It is an amenable number.

7421053225 is a deficient number, since it is larger than the sum of its proper divisors (1794746931).

7421053225 is a wasteful number, since it uses less digits than its factorization.

7421053225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441756 (or 441751 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 7421053225 is about 86145.5351425714. The cubic root of 7421053225 is about 1950.5414428975.

The spelling of 7421053225 in words is "seven billion, four hundred twenty-one million, fifty-three thousand, two hundred twenty-five".