7216839925 has 12 divisors (see below), whose sum is σ = 8957746980. Its totient is φ = 5767752320.

The previous prime is 7216839893. The next prime is 7216839947. The reversal of 7216839925 is 5299386127.

It can be written as a sum of positive squares in 6 ways, for example, as 1524590116 + 5692249809 = 39046^2 + 75447^2 .

It is not a de Polignac number, because 7216839925 - 2⁵ = 7216839893 is a prime.

It is a congruent 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, 117160 + ... + 167809.

It is an arithmetic number, because the mean of its divisors is an integer number (746478915).

Almost surely, 2^7216839925 is an apocalyptic number.

It is an amenable number.

7216839925 is a deficient number, since it is larger than the sum of its proper divisors (1740907055).

7216839925 is a wasteful number, since it uses less digits than its factorization.

7216839925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285992 (or 285987 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 7216839925 is about 84951.9859979742. The cubic root of 7216839925 is about 1932.4830386102.

The spelling of 7216839925 in words is "seven billion, two hundred sixteen million, eight hundred thirty-nine thousand, nine hundred twenty-five".