7249785533 has 8 divisors (see below), whose sum is σ = 7270972800. Its totient is φ = 7228615968.

The previous prime is 7249785511. The next prime is 7249785551. The reversal of 7249785533 is 3355879427.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7249785533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7249785583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1600610 + ... + 1605132.

It is an arithmetic number, because the mean of its divisors is an integer number (908871600).

Almost surely, 2^7249785533 is an apocalyptic number.

It is an amenable number.

7249785533 is a deficient number, since it is larger than the sum of its proper divisors (21187267).

7249785533 is a wasteful number, since it uses less digits than its factorization.

7249785533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8851.

The product of its digits is 6350400, while the sum is 53.

The square root of 7249785533 is about 85145.6724267299. The cubic root of 7249785533 is about 1935.4192356360.

The spelling of 7249785533 in words is "seven billion, two hundred forty-nine million, seven hundred eighty-five thousand, five hundred thirty-three".