7425052209 has 24 divisors (see below), whose sum is σ = 11365934112. Its totient is φ = 4654765440.

The previous prime is 7425052183. The next prime is 7425052247. The reversal of 7425052209 is 9022505247.

It is a happy number.

7425052209 is a `hidden beast` number, since 7 + 425 + 0 + 5 + 220 + 9 = 666.

It is not a de Polignac number, because 7425052209 - 2²⁰ = 7424003633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7425052249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158442 + ... + 199884.

It is an arithmetic number, because the mean of its divisors is an integer number (473580588).

Almost surely, 2^7425052209 is an apocalyptic number.

It is an amenable number.

7425052209 is a deficient number, since it is larger than the sum of its proper divisors (3940881903).

7425052209 is a wasteful number, since it uses less digits than its factorization.

7425052209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42637 (or 42634 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 7425052209 is about 86168.7426448825. The cubic root of 7425052209 is about 1950.8917428306.

The spelling of 7425052209 in words is "seven billion, four hundred twenty-five million, fifty-two thousand, two hundred nine".