7215226504 has 8 divisors (see below), whose sum is σ = 13528549710. Its totient is φ = 3607613248.

The previous prime is 7215226493. The next prime is 7215226517. The reversal of 7215226504 is 4056225127.

It can be written as a sum of positive squares in only one way, i.e., 3894009604 + 3321216900 = 62402^2 + 57630^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 7215226504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450951649 + ... + 450951664.

Almost surely, 2^7215226504 is an apocalyptic number.

It is an amenable number.

7215226504 is a deficient number, since it is larger than the sum of its proper divisors (6313323206).

7215226504 is a wasteful number, since it uses less digits than its factorization.

7215226504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901903319 (or 901903315 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 7215226504 is about 84942.4893913523. The cubic root of 7215226504 is about 1932.3390170750.

It can be divided in two parts, 721 and 5226504, that added together give a palindrome (5227225).

The spelling of 7215226504 in words is "seven billion, two hundred fifteen million, two hundred twenty-six thousand, five hundred four".