7222506615 has 32 divisors (see below), whose sum is σ = 12852504000. Its totient is φ = 3848256000.

The previous prime is 7222506541. The next prime is 7222506679. The reversal of 7222506615 is 5166052227.

7222506615 is a `hidden beast` number, since 72 + 22 + 506 + 61 + 5 = 666.

It is not a de Polignac number, because 7222506615 - 2⁸ = 7222506359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7222506615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116115 + ... + 167115.

It is an arithmetic number, because the mean of its divisors is an integer number (401640750).

Almost surely, 2^7222506615 is an apocalyptic number.

7222506615 is a deficient number, since it is larger than the sum of its proper divisors (5629997385).

7222506615 is a wasteful number, since it uses less digits than its factorization.

7222506615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52064 (or 52058 counting only the distinct ones).

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

The square root of 7222506615 is about 84985.3317637814. The cubic root of 7222506615 is about 1932.9887039464.

The spelling of 7222506615 in words is "seven billion, two hundred twenty-two million, five hundred six thousand, six hundred fifteen".