7420911498225 has 27 divisors (see below), whose sum is σ = 13291750227873. Its totient is φ = 3957797672640.

The previous prime is 7420911498191. The next prime is 7420911498241. The reversal of 7420911498225 is 5228941190247.

The square root of 7420911498225 is 2724135.

It is a perfect power (a square), and thus also a powerful number.

7420911498225 is a `hidden beast` number, since 7 + 42 + 0 + 91 + 1 + 498 + 2 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 27450193761 + 7393461304464 = 165681^2 + 2719092^2 .

It is not a de Polignac number, because 7420911498225 - 2¹⁹ = 7420910973937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 40771221 + ... + 40952829.

Almost surely, 2^{7420911498225} is an apocalyptic number.

7420911498225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7420911498225 is the 2724135-th square number.

7420911498225 is the 1362068-th centered octagonal number.

It is an amenable number.

7420911498225 is a deficient number, since it is larger than the sum of its proper divisors (5870838729648).

7420911498225 is an frugal number, since it uses more digits than its factorization.

7420911498225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363234 (or 181617 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 7420911498225 in words is "seven trillion, four hundred twenty billion, nine hundred eleven million, four hundred ninety-eight thousand, two hundred twenty-five".